Warlock 5e - DnD Class Guide

Learn all about the pact-making warlock class of D&D

In Dungeons & Dragons, the Warlock class is a unique archetype of eldritch power and arcane knowledge, forged through pacts with otherworldly patrons. This pact grants them access to diverse and potent abilities, making them versatile spellcasters.

Warlocks in D&D 5e can draw inspiration from a wide range of fictional characters. John Constantine from the “Hellblazer” comics epitomises the Warlock’s cunning and complex relationship with dark forces. Willow Rosenberg from “Buffy the Vampire Slayer” showcases the evolution from a novice spellcaster to a powerful magic user, driven by both light and dark influences. Yennefer of Vengerberg from “The Witcher” series demonstrates the ambition and potent magic typical of a Warlock, entwined with her pact for power.

The versatility of Warlocks allows them to fit into various roles within a party. As skilled negotiators and charismatic leaders, they can sway the minds of friends and foes alike. Their unique abilities, such as the power to summon familiars or call upon their patron for aid, add layers of strategy and intrigue to their play style.

At a glance

Choose a Warlock if you want…

Access to powerful and customisable magic
A strong narrative connection to an otherworldly patron
To play a charismatic and influential character
A mix of utility and offensive magic

A Warlock might not be for you if…

Limited spell slots and reliance on short rests
A smaller and less diverse spell list
Role-playing constraints due to their pact with a patron
Potential conflicts with party dynamics

For a more detailed look at a Warlock’s capabilities, I’ve put together the scoring matrix below. This rates Warlocks on different features and abilities to give you a clear idea of where their strengths and weaknesses lie. For a full comparison of all classes and their capabilities, check out our class guide:

Class ratings (out of 5)

Combat

Armor class: 1
Weapon damage: 3
Durability: 2
Mobility: 3
Combat abilities: 3

Spellcasting

Spells known: 3
Spell slots: 2
Spell damage: 4
Spell buffs: 4
Spell debuffs: 4
Spell healing: 3
Battlefield control spells: 3
Out of combat spells: 3

Out of combat

Face abilities: 4
Skills: 4
Out of combat abilities: 4

How have we worked out these scores?

We’ve reviewed and played all the officially released D&D 5e classes and looked at a typical build for these class types. Because subclasses offer a lot of variety, we’ve had to exclude these from our considerations.

There is an exception here as the artificer is shaped hugely by their subclass. When it comes to something like weapon damage, we’ve had to take into consideration the fact that most artificers are decent with weapons, but an alchemist would probably only score a 2, even if the other artificer subclasses would score a 3.

We’ve scored each attribute out of 5 with a score of 5 reserved for classes that are the very best at that attribute. There’s some judgement required here. For example, a druid is typically a 3 in mobility (average mobility), but with wildshape, they can fly and swim quicker (and just travel faster). This elevates their score in our minds, even if they don’t consistently have these levels of mobility.

It’s important to understand though, that these scores are not hard and fast. Obtaining feats and pumping more into certain ability scores can turn any class into a decent face, for example. Different subclasses will also make a class better at different things (like an eldritch knight gaining spellcasting) but we feel that these scores represent most typical versions of their class.

Warlock Strengths

Warlocks have a range of strengths making them work well in a variety of situations:

Customisable Abilities:
Warlocks can choose from a variety of Eldritch Invocations, allowing them to tailor their abilities to their play style. These invocations can give combat enhancements, utility powers, and unique magical effects.

Powerful Cantrips:
With access to potent cantrips like Eldritch Blast, Warlocks can deal consistent and significant damage at any level. This makes them reliable damage dealers without the need to expend spell slots.

Unique Spellcasting Mechanics:
Warlocks regain their spell slots on a short rest, allowing them to cast powerful spells more often than other spellcasters. This can be a significant advantage in campaigns with multiple encounters per day.

Strong Role-Playing Potential:
The Warlock’s pact with an otherworldly patron offers rich narrative possibilities. Players can explore complex relationships with their patron, adding depth and intrigue to their character’s backstory and motivations.

Versatility in Combat:
With options like the Pact of the Blade, Warlocks can be effective in both melee and ranged combat. Their spell list includes a mix of offensive and defensive spells, allowing them to adapt to different combat scenarios.

Charismatic Influence:
As Charisma-based spellcasters, Warlocks excel in social interactions. They can be persuasive leaders, deceivers, or negotiators, making them valuable both in and out of combat.

Utility and Support Spells:
Warlocks have access to a variety of support spells. They can summon familiars, create protective wards, and teleport short distances, providing solutions to a range of challenges.

Warlock Weaknesses

Limited Spell Slots and Reliance on Short Rests:
Warlocks have fewer spell slots than other spellcasters, which can be restrictive in longer encounters or if short rests are not workable for the party.

Dependency on Eldritch Invocations for Customization:
Warlocks heavily rely on Eldritch Invocations to enhance their abilities, which feel limiting compared to classes that offer more flexible spellcasting options or features.

A Smaller and Less Diverse Spell List:
Warlocks have a more restricted spell list compared to full casters like wizards or sorcerers, which can feel confining if you enjoy a wide variety of spells.

Role-Playing Constraints Due to Their Pact with a Patron:
The Warlock’s narrative is tightly linked to their patron, which can impose constraints on role-playing and does not appeal to players seeking freedom in character backstory and motivations.

Lower Overall Spellcasting Power Compared to Full Casters:
Warlocks, as a hybrid class, have lower spellcasting power than full spellcasters, which can be a disadvantage for players who prefer high-level spellcasting capabilities.

Potential Conflicts with Party Dynamics:
The Warlock’s connection to a morally ambiguous patron can lead to conflicts with party members or clash with the campaign’s tone, making for complicated group dynamics.

Getting the most of Warlock class features

Party Role	Utility, Spell Damage Dealer, Control
Main Ability	Charisma
Saving Throws	Wisdom, Charisma
Hit Dice	1d8 + Consitution modifier per level
HP at 1st Level	8 + Constitution Modifier
Spell Casting Ability	Charisma
Armour Proficiency	Light armour
Weapon Proficiency	Simple weapons

Warlock Abilities

Cantrips

Eldritch Blast: A versatile and powerful ranged attack that scales with level, making it the Warlock’s primary damage-dealing choice. A Warlock’s most utilised tool.

Chill Touch: Deals necrotic damage while preventing healing, making it useful for disrupting enemy tactics and dealing consistent damage.

Mage Hand: Allows manipulation of objects at a distance, providing excellent utility for solving puzzles and interacting with the environment safely.

Minor Illusion: Creates a sound or image to distract or deceive, offering creative solutions for stealth and role-playing situations.

Thaumaturgy: Enables minor magical effects to enhance social interactions and create atmospheric changes, adding impact to role-playing encounters.

Level 1

Armor of Agathys: Provides temporary hit points and deals damage to attackers, making it an excellent defensive choice for mitigating damage in close combat. Cast before anticipated combat to save actions in a fight.

Hellish Rebuke: A reactive spell that punishes attackers with fire damage, serving as a deterrent in melee situations. Great in the early campaign but doesn’t scale well over time.

Hex: Adds extra damage to attacks against a target and imposes disadvantage on one ability check, enhancing the Warlock’s damage output and control in combat.

Expeditious Retreat: Grants increased mobility by allowing the Warlock to dash as a bonus action, perfect for escaping danger or repositioning in combat. Useful in the early campaign, but Warlocks have better options later.

Disguise Self: Enables the Warlock to alter their appearance, providing versatility for infiltration, deception, and role-playing opportunities in various scenarios. Very useful coupled with the Warlock’s high charisma.

Level 2

Misty Step: A bonus action spell that allows for teleportation up to 30 feet, making it a powerful tool for escaping danger or repositioning in combat. Worth saving a spell slot for in case of emergencies.

Mirror Image: Creates illusory duplicates of the caster to confuse attackers, significantly increasing survivability by making it harder for enemies to land successful hits.

Hold Person: Paralyses a humanoid target on a failed saving throw, providing a potent crowd control choice that can turn the tide of battle in single enemy encounters.

Invisibility: Grants the ability to become invisible for up to an hour, offering exceptional stealth opportunities for exploration, ambushes, or escaping threats.

Darkness: Creates an area of magical darkness that obscures vision, preventing most things in the darkness from being targetted by enemies. Use wisely, as it can obscure the vision of allies with Darkvision.

Level 3

Counterspell: Allows the Warlock to interrupt and negate another spellcaster’s spell, providing a crucial defensive tool in combat situations against powerful magic users.

Fear: Instills terror in enemies, forcing them to flee if they fail their saving throw, which can disrupt enemy formations and create openings for allies.

Hunger of Hadar: Creates a zone of difficult terrain filled with damaging darkness, inflicting cold damage on enemies while providing strategic control over the battlefield. Ideal for dealing with a swarm,.

Bestow Curse: Imposes a debilitating curse on a target with various effects, offering flexibility in its application to weaken foes or hinder their effectiveness in combat. Because it requires a higher level spell slot, this may often be passed up in favor of Hex.

Vampiric Touch: Allows the Warlock to make a melee spell attack that drains life from the target and healing the caster, not used often as your Warlock will largely want to stay out of striking distance.

Level 4

Banishment: A powerful spell that can temporarily remove a creature from the battlefield, but it requires concentration and is less effective against creatures native to the current plane.

Blight: Deals significant necrotic damage to a target, particularly effective against plants, but it lacks versatility and is less impactful against creatures with necrotic resistance.

Dimension Door: Allows teleportation of yourself and one ally up to 500 feet, offering unparalleled mobility, but it’s situational and may feel redundant if you already have Misty Step.

Phantasmal Killer: Frightens and deals recurring psychic damage to a target, but it requires concentration and multiple failed saves to reach its full potential, making it less reliable than other damage-dealing spells.

Greater Invisibility: Provides invisibility without breaking upon attacking or casting spells, making it excellent for offensive strategies, though it demands concentration and may be less useful in encounters where stealth isn’t crucial.

Level 5

Hold Monster: Paralyses any creature (not just humanoids) on a failed save, making it a versatile and powerful control spell, but it’s less effective against sentient creatures who might with high Wisdom saves.

Scrying: Allows you to spy on a creature from a distance, providing valuable information, but it requires preparation, familiarity with the target, and is less useful in fast-paced or combat-focused campaigns.

Contact Other Plane: Grants access to powerful knowledge from extraplanar entities, but it comes with the risk of mental strain or insanity, making it a high-risk, high-reward option.

Synaptic Static: Deals significant psychic damage in an area and debuffs affected creatures, offering both damage and crowd control, though it’s less effective against enemies with high Intelligence or psychic resistance.

Dream: Allows communication or the delivery of a message within another creature’s dreams, with the potential to cause psychic damage, but it’s highly situational and more useful for role-playing than combat.

Pact Magic – Level 1

Summary: Grants a limited number of spell slots that recharge on a short rest, with all spells cast at the Warlock’s highest available level.

Evaluation: The ability to regain spell slots on a short rest provides flexibility and longevity in adventuring days, allowing for frequent use of powerful spells. However, the small number of spell slots can be restrictive, requiring careful management and planning during encounters.

Eldritch Invocations – Level 2

Summary: Provides a wide range of customizable abilities that enhance your character’s power, utility, and versatility.

Evaluation: Eldritch Invocations are a cornerstone of the Warlock class, offering significant customization and unique abilities such as the famous Agonizing Blast or Devil’s Sight. The sheer variety allows for tailored builds, but limited invocation slots mean tough choices, and some invocations are more situational or campaign-dependent than others.

Pact Boon – Level 3

Summary: Allows you to choose one of three boons: Pact of the Chain (familiar), Pact of the Blade (weapon), or Pact of the Tome (extra cantrips).

Evaluation: Pact Boons provide a defining feature for your Warlock’s playstyle, with each option offering distinct benefits. Pact of the Chain enhances your utility with a familiar, Pact of the Blade focuses on melee combat, and Pact of the Tome adds spell versatility. However, the effectiveness of each boon is heavily dependent on your chosen build and campaign setting.

Mystic Arcanum – Level 11

Summary: Grants access to powerful spells of levels 6 through 9, each usable once per long rest without consuming a spell slot.

Evaluation: Mystic Arcanum allows Warlocks to wield high-level magic, compensating for their limited spell slots. These powerful spells can turn the tide of critical encounters, but their once-per-day limitation means they must be used wisely. The lack of flexibility compared to full casters in casting high-level spells can feel restrictive.

Dark One’s Blessing – Level 1 (Fiend Patron)

Summary: Grants temporary hit points whenever you reduce an enemy to 0 hit points.

Evaluation: This ability significantly boosts survivability, especially in combat-heavy campaigns where enemies are frequently defeated. It synergizes well with builds that focus on dealing damage, but in encounters with few or high-health enemies, its effectiveness diminishes, making it less reliable.

Awakened Mind – Level 1 (Great Old One Patron)

Summary: Allows telepathic communication with any creature you can see within 30 feet, regardless of language.

Evaluation: Awakened Mind provides strong role-playing and utility potential, facilitating communication in various situations without relying on common language. It’s particularly useful in social encounters, exploration, and negotiating with creatures, though it has limited direct combat applications.

Hexblade’s Curse – Level 1 (Hexblade Patron)

Summary: Curses a target, improving your critical hit chance, adding bonus damage, and healing you if the target dies.

Evaluation: Hexblade’s Curse is a potent offensive tool, increasing both damage output and survivability. Its short cooldown (short rest) allows for frequent use, but its single-target nature limits its effectiveness in encounters with multiple or rapidly changing enemies.

Fathomless Tentacle – Level 1 (Fathomless Patron)

Summary: Summons a tentacle that deals cold damage and can reduce a target’s speed.

Evaluation: The tentacle provides both damage and control, making it useful in a variety of situations. Its ability to slow enemies adds tactical options, particularly in encounters where movement control is crucial. However, its effectiveness may be limited in campaigns where enemies are resistant to cold damage or in environments where summoning is challenging.

One with Shadows – Eldritch Invocation

Summary: Allows you to become invisible while in an area of dim light or darkness until you move or take an action.

Evaluation: One with Shadows is a powerful utility for stealth and surprise attacks, offering excellent synergy with abilities like Darkness. However, its limitations—requiring dim light or darkness and ending upon movement or action—make it highly situational and less useful in bright environments or during fast-paced combat.

Hurl Through Hell – Level 14 (Fiend Patron)

Summary: When you hit a creature with an attack, you can banish it to a hellish plane, dealing massive psychic damage.

Evaluation: Hurl Through Hell is a devastating ability that can severely weaken or even outright kill a target, especially if it’s not resistant to psychic damage. Its once-per-long-rest limitation means it’s best saved for critical moments, but when used effectively, it can drastically alter the outcome of an encounter. However, its utility is somewhat reduced against creatures that resist or are immune to psychic damage.

Whispers of the Grave – Eldritch Invocation

Summary: Allows you to cast Speak with Dead at will, without expending a spell slot.

Evaluation: This invocation provides unlimited access to Speak with Dead, offering significant investigative and role-playing potential. It’s particularly useful in campaigns with a strong mystery or intrigue element. However, it has no combat application and relies on the presence of corpses, which can limit its usefulness in certain settings or scenarios.

How to play as a Warlock

Warlocks are versatile spellcasters with a unique blend of offensive and utility abilities, often serving as potent damage dealers or debuffers. Their spellcasting relies on Charisma, making it crucial to prioritise this stat for powerful spell effects and social interactions. With their limited spell slots but the ability to cast at the highest level, Warlocks excel in delivering high-impact spells when it counts. Dexterity is also important for Warlocks, particularly for those who prefer to stay nimble on the battlefield and rely on ranged attacks like Eldritch Blast, which can be further enhanced by their Eldritch Invocations.

Blaster

Good for: Dealing consistent, high damage at range, and delivering powerful single-target or area-of-effect spells.

Spells & Abilities: Choose Eldritch Invocations like Agonizing Blast to enhance Eldritch Blast, and select spells like Hex or Shatter to maximize your damage output.

How it works:

Damage Dealer: As a Blaster, you’ll focus on dealing damage from a distance. Eldritch Blast, enhanced with Agonizing Blast, becomes a reliable source of consistent damage, while Hex adds bonus damage to your attacks.

Area Control: Spells like Hunger of Hadar or Fireball (if you take the Fiend patron) allow you to control the battlefield by damaging multiple enemies and creating dangerous zones that enemies have to avoid.

Sustained Offense: With the Warlock’s ability to recover spell slots on short rests, you can maintain a steady flow of powerful attacks throughout the day, making you a reliable source of damage in any encounter.

Controller

Good for: Manipulating the battlefield, hindering enemy movement, and debuffing foes to turn the tide of battle.

Spells & Abilities: Focus on spells like Hold Person, Repelling Blast (via Eldritch Invocations), and Misty Step to control the battlefield and reposition yourself.

How it works:

Battlefield Manipulation: As a Controller, you’ll use spells like Hold Person to incapacitate enemies or Repelling Blast to push them away, creating advantageous positions for your party.

Debuffing Enemies: Spells like Bane or Bestow Curse weaken enemies, making them easier for your allies to defeat. By reducing enemy effectiveness, you control the flow of battle.

Tactical Movement: Spells like Misty Step or abilities like the Fathomless Patron’s tentacle allow you to reposition yourself and your allies, keeping enemies at bay and exploiting their weaknesses.

Social Manipulator

Good for: Leading negotiations, gathering information, and influencing NPCs.

Spells & Abilities: Focus on spells like Charm Person, Disguise Self, and Eldritch Invocations like Beguiling Influence to boost your social skills.

How it works:

Social Mastery: As the Face, you’ll excel in social interactions, using your high Charisma to persuade, deceive, or intimidate NPCs. Spells like Charm Person or Suggestion can turn potentially hostile situations in your favor.

Information Gathering: Spells like Detect Thoughts and Eldritch Invocations like Beguiling Influence allow you to uncover hidden motives and gather crucial information that others might miss.

Role-Playing Focus: The Face is often at the centre of non-combat encounters, driving the story forward through interactions with NPCs, making it an ideal role for players who enjoy social role-playing.

Hexblade

Good for: Engaging in close combat, dealing high damage with melee attacks, and absorbing damage with defensive spells.

Spells & Abilities: Focus on Hexblade-specific abilities like Hexblade’s Curse and spells like Shield, Armor of Agathys, and Wrathful Smite to enhance your combat capabilities.

How it works:

Melee Combatant: As a Hexblade, you’ll be on the front lines, using your Charisma to fuel your melee attacks with your pact weapon. Hexblade’s Curse boosts your critical hit chance and damage, making you a fearsome opponent in close quarters.

Tanking Ability: Spells like Armor of Agathys increase your durability in combat, while the Shield spell can protect you from unexpected attacks. With the right invocations, you can also regain hit points, making you more resilient in prolonged battles.

Versatile Fighter: The Hexblade can easily switch between melee and ranged combat, thanks to spells like Eldritch Blast. This versatility allows you to adapt to various combat situations, providing reliable damage output regardless of range.

Which subclass should I choose?

The Warlock has several subclasses, each offering unique powers and playstyles, so your choice largely depends on the kind of character you want to create. Subclasses, based around Patrons, define your Warlock’s abilities and role within the party, so a Warlock who wants to dominate and manipulate others might choose the Archfey, while one who seeks raw power and destruction might align with the Fiend.

Below, I’ve provided some guidance on which Warlock Patrons are best suited for different types of builds and playstyles, helping you shape your Warlock into a formidable force in your campaign.

Which Warlock subclass should I choose

When you are looking at a Warlock subclass, the choice of patron is key to defining your role in the party. Each patron offers distinct powers and influences that can drastically shape your playstyle. For example, if you want a Warlock who excels in combat, the Hexblade patron boosts your combat skills. Alternatively, if you prefer manipulating minds and controlling the battlefield, the Archfey patron gives you enchantments and illusions that fit that playstyle.

Here’s a quick guide to help you choose the Warlock patron that best aligns with your character concept.

The Archfey

Source Book: Player’s Handbook

Description: Warlocks connected to fey patrons, focusing on enchantment and illusion magic.
Good for: Warlocks who want to control and deceive their enemies with charm and misdirection, but can struggle if pushed direct combat, as one of the last members of a party.

The Fiend

Source Book: Player’s Handbook

Description: Warlocks who draw power from fiendish patrons, gaining offensive firepower and survival abilities.

Good for: Warlocks looking for a straightforward boost in damage output and resilience, though the abilities can be predictable and lack versatility.

The Great Old One

Source Book: Player’s Handbook

Description: Warlocks aligned with ancient eldritch beings, focusing on psychic abilities and mind control.
Good for: Players who enjoy playing mysterious and unsettling characters with a focus on mental manipulation, though the niche abilities, excellent for social encounters may not always shine in combat.

The Hexblade

Source Book: Xanathar’s Guide to Everything

Description: Warlocks who bond with sentient weapons, excelling in melee combat.
Good for: Warlocks who want to be front-line fighters, effectively blending martial prowess mixed with magical abilities, though it risks being overshadowed by more dedicated melee classes.

The Celestial

Source Book: Xanathar’s Guide to Everything

Description: Warlocks who serve celestial beings, offering healing and radiant abilities.
Good for: Players who want to add healing and support roles to their Warlock but may find the subclass less impactful in at closing a combat situation.

The Undying

Source Book: The Sword Coast Adventurers Guide

Description: Warlocks tied to entities that defy death, gaining abilities focused on survival and undeath.
Good for: Warlocks looking for strong self-preservation abilities and thematic undead features, though they may lack the raw power or utility of other patrons.

The Fathomless

Source Book: Tasha’s Cauldron of Everything

Description: Warlocks connected to the deep seas or watery entities, offering aquatic-themed abilities.
Good for: Warlocks in aquatic campaigns or those wanting to control the battlefield with tentacles and other oceanic powers, but less useful in landlocked adventures.

The Genie

Source Book: Tasha’s Cauldron of Everything

Description: Warlocks with genie patrons, gaining abilities of a chosen element and the ability to retreat to a personal demiplane.
Good for: Warlocks who want versatility and a unique utility feature with their magical vessel, but the elemental focus of skills can be situational.

The Undead

Source Book: Van Richten’s Guide to Ravenloft

Description: Warlocks who gain powers from undead patrons, focusing on fear and necrotic abilities.
Good for: Warlocks who want to evoke terror and manipulate life and death, though the reliance on fear effects can be less effective against certain foes.

How to optimise a Warlock

Ability Scores

Recommended options: Charisma, Constitution, Dexterity. Consider Strength if you plan on a Hexblade Warlock.
Options to avoid: Intelligence and Wisdom. Generally, investing heavily in Charisma is essential, and Dexterity or Strength (for Hexblades) should be your secondary focus.
Considerations: Charisma is your primary stat as it governs spellcasting and many class abilities. Constitution is crucial for survivability, while Dexterity helps with armour class and initiative. Strength is mainly for Hexblades who engage in melee combat.

Races

Recommended options: Tiefling, Half-Elf, Variant Human, Changeling, Yuan-Ti Pureblood.
Options to avoid: Dwarf, Halfling, Dragonborn (except for specific builds).
Considerations: Focus on races that boost Charisma and provide useful traits like resistances, additional skills, or spell-like abilities. Tiefling and Half-Elf are particularly strong choices due to their Charisma bonuses and additional features. Variant Human can be great for accessing an early feat.

Backgrounds

Recommended options: Charlatan, Noble, Sage, Urchin.
Options to avoid: Acolyte, Folk Hero, Soldier.
Considerations: Choose backgrounds that complement Charisma-based skills like Deception, Persuasion, or Intimidation. The extra skill proficiencies can round out your Warlock’s capabilities, making them more versatile both in and out of combat.

Skills

Recommended options: Deception, Intimidation, Persuasion, Arcana.
Options to avoid: Animal Handling, Survival.
Considerations: Warlocks excel in social situations and manipulation, making Charisma-based skills highly valuable. Arcana is useful for understanding magical lore and effects, while Perception, though not Charisma-based, can help with spotting threats.

Feats

Recommended options: Eldritch Adept, War Caster, Inspiring Leader, Resilient (Constitution), Lucky.
Options to avoid: Heavy Armor Master, Grappler.
Considerations: Feats that enhance spellcasting, resilience, and utility are best for Warlocks. War Caster is critical if you plan to concentrate on spells in combat, while Eldritch Adept allows you to pick up an extra Eldritch Invocation, further enhancing your versatility.

Invocations

Recommended options: Agonizing Blast, Repelling Blast, Devil’s Sight, Mask of Many Faces.
Options to avoid: Beast Speech, Thief of Five Fates.
Considerations: Choose invocations that complement your build and playstyle. Agonising Blast is almost mandatory for any Warlock due to its synergy with Eldritch Blast. Devil’s Sight pairs well with the Darkness spell, while Mask of Many Faces provides endless utility.

Pacts

Recommended options: Pact of the Tome, Pact of the Blade (especially for Hexblade Warlocks), Pact of the Chain.
Options to avoid: None specifically; choice is heavily build-dependent.
Considerations: Pact of the Tome grants additional cantrips, enhancing your versatility, while Pact of the Blade is ideal for melee-focused Warlocks. Pact of the Chain gives you a unique familiar with added benefits, making it great for reconnaissance and combat support.

Multiclassing

Recommended options: Sorcerer, Paladin, Bard, Fighter (for Hexblade).

Options to avoid: Cleric, Druid, Barbarian.

Considerations: Multiclassing into Sorcerer can enhance your spellcasting with additional spell slots and Metamagic. Paladin offers powerful smite abilities and can synergize well with a high Charisma build. Fighter provides Action Surge and armor proficiencies, particularly useful for Hexblade Warlocks who want to be on the front lines.

Roleplaying a Warlock

The Ambitious Scholar: To roleplay the Ambitious Scholar, emphasize your hunger for knowledge and power in every interaction. Frequently reference your studies of ancient tomes and arcane secrets, and let your curiosity drive your decisions. Show a willingness to push boundaries and take risks to uncover hidden truths, even if it means dabbling in dangerous magic. Use your pact as a tool to further your goals, and be willing to bargain or manipulate others to gain more power or information.

The Cursed Wanderer: As the Cursed Wanderer, focus on the burden of your pact and its consequences. Display a sense of weariness or melancholy in your demeanor, often reflecting on the price you’ve paid for your power. Avoid forming close bonds, fearing that your curse may bring harm to those around you. Let your interactions with your patron be tinged with bitterness or regret, and occasionally struggle with the darker impulses that your pact stirs within you.

The Dark Avenger: To embody the Dark Avenger, let your pact fuel your desire for vengeance against those who have wronged you. Speak with a cold, determined tone, and show little mercy to your enemies. Your pact is a means to an end, a tool to exact justice—no matter the cost. Roleplay the internal conflict between your desire for retribution and the toll it takes on your soul. In combat, focus on delivering swift, decisive blows, showing satisfaction when you bring your enemies to justice.

The Enthralled Devotee: As the Enthralled Devotee, demonstrate unwavering loyalty and devotion to your patron. Speak of your patron with reverence, and let their will guide your actions. Show a willingness to follow orders without question, even if it leads to morally ambiguous situations. Your identity is intertwined with your patron, and you may seek to spread their influence or agenda. Roleplay moments of communion or ritual, highlighting the spiritual connection you share with your otherworldly benefactor.