Rules edition: 2024 Warlock class with the 2024 Player’s Handbook Dragonborn species, using Black Draconic Ancestry. This guide does not combine the 2014 class or older Dragonborn traits with the revised rules. For a campaign using the original Warlock, see our separate 2014 spell-components guide. A set of assorted ceramic dice is useful for damage rolls and tracking spell resources.
A Black Dragonborn Warlock gets acid resistance and an acid breath weapon, while the Warlock supplies Charisma-based magic and Eldritch Invocations. The key build choice is not “acid spells at all costs”: Black ancestry affects the breath and resistance, not the Warlock’s spell list. Prioritize Charisma for spells, Constitution for survival and the Dragonborn breath save DC, and choose a background that supports those scores.
Ability scores and background
Make Charisma your highest ability for Warlock spell attacks and save DCs. Constitution is useful for hit points, Concentration, and the Breath Weapon’s saving-throw DC; Dexterity helps with initiative and defense. Under 2024 character creation, your background provides ability-score increases and an Origin feat. The 2024 Dragonborn species does not give the old +2 Strength/+1 Charisma increase, so do not add it to your background bonuses.
Warlocks begin with Pact Magic and one Eldritch Invocation at level 1. You choose a Warlock subclass at level 3, and can gain more invocations as you advance. If a melee pact is part of the concept, Pact of the Blade is an invocation option; it does not remove the need for Charisma if you still rely on Warlock spells.
What Black ancestry changes
Black Draconic Ancestry gives Acid damage for the Breath Weapon and resistance to Acid damage. The 2024 Dragonborn also gains Darkvision and temporary Draconic Flight at character level 5. When you take the Attack action, you can replace one attack with the breath. Each use lets you choose a 15-foot cone or a 30-foot line that is 5 feet wide. Creatures in the area make a Dexterity saving throw against 8 + your Constitution modifier + Proficiency Bonus; the damage starts at 1d10, scales at levels 5, 11, and 17, and has a number of uses equal to your Proficiency Bonus per Long Rest.
The breath is a saving-throw effect, not a Warlock spell or a weapon attack. Charisma does not set its DC, and spell features that require a spell attack do not improve it. It can be a useful area option when targets line up or cluster, but on a typical Warlock turn it competes with an action spell such as Eldritch Blast. Use it when the area and damage type are valuable, not just because it is ready.
Choose a pact and patron for your campaign
Your subclass arrives at Warlock level 3 under the 2024 rules; choose a patron from the sources your DM allows. The patron shapes features and spell options, but Black ancestry does not mechanically require an evil, draconic, or acid-themed pact. At level 1, your Eldritch Invocation can establish a direction such as a pact boon. Consider whether the character fights at range, uses a bonded weapon, or supports the party with control before spending later invocation choices.
Keep the action economy in view. Casting most leveled Warlock spells uses your action; the breath weapon also uses the Attack action. Some invocations, spells, and features use Bonus Actions, so avoid planning a turn that assumes all of them happen together. Pick a main routine, then treat the breath and limited resources as situational tools.
Roleplay hooks
Black scales do not dictate a villainous personality. The acid lineage might be a source of family pride, an accident the character works to control, or an outward sign that strangers misunderstand. The patron relationship can reinforce, challenge, or have nothing to do with that ancestry. Keep the mechanics readable at the table, and let the character’s choices provide the surprise.
Official Rules Sources
- D&D Beyond Basic Rules (2024): Warlock class — Pact Magic, Eldritch Invocations, and subclass progression.
- D&D Beyond Basic Rules (2024): Character Origins — Dragonborn traits, Draconic Ancestry, and background ability scores.
- D&D Beyond: 2024 Dragonborn species — current species source.
Dice for your table: set of assorted ceramic dice.
