The Heart of the World

Amidst the gods, fiends and fey, there exists an entity as old as the material plane itself. The Heart of the World is the will of the planet manifest.

Otherworldly Patrons

The beings that serve as patrons for warlocks are mighty inhabitants of other planes of existence - not gods, but almost godlike in their power. Various patrons give their warlocks access to different powers and invocations, and expect significant favors in return.

Some patrons collect warlocks, doling out mystic knowledge relatively freely or boasting of their ability to bind mortals to their will. Other patrons bestow their power only grudgingly, and might make a pact with only one warlock. Warlocks who serve the same patron might view each other as allies, siblings, or rivals.

Heart of the World

Your patron is the Heart of the World, a metaphysical entity manifested of the will of the planet. It has beseeched you to be both its guardian and its champion, keeping the balance between the planes of existence.

You are bestowed with an object that functions as both a key and a weapon: a keyblade.

Expanded Spell List

The Heart of the World lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Heart of the World Expanded Spells

Spell Level Spells 1st Cure Wounds, Shield of Faith 2nd Aid, Branding Smite 3rd Aura of Vitality, Elemental Weapon 4th Banishment, Staggering Smite 5th Banishing Smite, Mass Cure Wounds

Pact of the Key

When you choose this patron at 1st level, you are required to take the Pact of the Blade feature at 3rd level. When you do, your Pact of the Blade ability is augmented. Your Pact Weapon assumes the form of a key-shaped blade.

Your pact weapon no longer disappears if it is more than 5 feet away. If it is on the same plane of existence, you can summon your pact weapon as a bonus action on your turn, instead of an action, causing it to teleport instantly to your hand.

Your pact weapon adopts the statistics of a longsword and you cannot be disarmed of it unless you are incapacitated.

Extra Attack

Beginning at 6th level, you can Attack twice, instead of once, whenever you take the Attack action on your turn.

Synch Blade

At 10th level, you gain the ability to split your pact weapon in two. As a bonus action, you can cause your pact weapon to split or rejoin. When split, each weapon adopts the statistics of a shortsword and you gain a +1 bonus to AC while you are dual wielding.

Doors Between Worlds

Starting at 14th level, you unlock the true power of the key blade. Once per long rest, you can cast the Plane Shift spell, using your pact weapon in place of the spell's material components, specifying a plane of which the warlock is aware.

Eldritch Invocations

Key of Elements

Prerequisites: 5th level, Heart of the World patron



As a bonus action, you can change the type of damage that your keyblade does, choosing from the following list: bludgeoning, piercing, slashing, acid, cold, fire, force, lightning, necrotic, radiant, or thunder.

Lock and Key

Prerequisites: Heart of the World patron



Your keyblade can be used to reveal or shut away secrets and cancel magic. You can cast arcane lock or knock once without expending a warlock spell slot. You can't do so again until you finish a long rest.

Second Chance

Prerequisites: Heart of the World patron



When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. You can't use this invocation again until you finish a long rest.

Second Wind

Prerequisites: Heart of the World patron



You have a limited well of stamina that you can draw on to protect yourself from harm. On your turn, you can use a bonus action to regain hit points equal to 1d8 + your warlock level. Once you use this invocation, you must finish a short or long rest before you can use it again.