The Blackthorn Grove

Expanded Spell List

The Blackthorn Grove 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.

	Blackthorn Grove Expanded Spells
Spell Level	Spells
1st	entangle, hunter’s pace
2nd	heartripper, replenish
3rd	plant growth, skewering vines
4th	bloodthorn, cage of briars
5th	overwhelming emotion, tree stride

Blackthorn Heart

At 1st level, you have torn out your heart and replaced it with something otherworldly, granting you the will to survive. You ignore nonmagical difficult terrain. Whenever you are reduced to 0 hit points or fail a death saving throw, your Blackthorn heart bursts from your chest and lashes out with life-stealing briars toward the nearest hostile creature. Make a melee spell attack against an enemy within 5 feet of you. On a hit, the creature takes magical piercing damage equal to your warlock level, and you regain hit points equal to the damage dealt. After you recover hit points using this feature, this attack is made with disadvantage until you finish a long rest.

Apathy is Death

At 6th level, you can use your reaction to surge with purpose and haste whenever you make an Intelligence, Wisdom, or Charisma saving throw. You gain advantage on the saving throw, can move up to half your speed, and can make a single weapon attack before the result of the roll is revealed. Once you use this feature, you can’t do so again until you finish a short or long rest.

Arboreal Guardian

At 10th level, your purpose is not merely to exist, but to safeguard life. Whenever a creature within 5 feet of you would take damage, you can choose to redirect half of the damage to you by shielding them with vines from your Blackthorn heart. Only the original target suffers any additional effects of the damage. If this damage reduces you to 0 hit points, you gain advantage on the first attack made by your Blackthorn Heart feature.

Seeds of Destruction

At 14th level, you realize the reason you have been blessed with this power and purpose: to spread the Blackthorn Grove. As an action, or whenever you are reduced to 0 hit points and you fail to recover hit points using your Blackthorn Heart feature, you can choose to have the beginnings of a new Maze of Blood appear around you. The area within a 30-foot radius of you becomes difficult terrain as blood-hungry vines emerge from the assembled briars to drink their fill. A creature within the radius at the start of its turn must make a Constitution saving throw against your warlock spell save DC. A target takes 5d10 magical slashing damage on a failed save, or half as much damage on a successful one. Allies make this saving throw with advantage. If summoned as an action, it lasts until the start of your next turn. If summoned when you are at 0 hit points, it lasts until you recover 1 hit point, or becomes permanent if you die.
The Maze can be summoned once as an action, and this use recovers whenever you finish a long rest. The Maze can also be summoned once when you are at 0 hit points, and this use recovers whenever you finish a long rest.

Quirk of the Thornhearted

Warlocks who draw power from the Blackthorn Grove are called thornhearted and are often secretive about their origins, instead preferring to converse about more pressing matters. Their secrecy is often born of necessity, as most have enemies that would love to see them dead. Consider adding one or more of these quirks when creating a warlock or after drawing heavily from the power of the Grove.

d20	Quirk
1	You smile and laugh without reservation.
2	You sleep on bare earth when outdoors.
3	You weep openly whenever you feel despair.
4	You eat raw meat whenever you get the chance.
5	You move constantly, even when still.
6	You refuse to surrender without a fight.
7	You dislike cities and urban areas.
8	People often wonder about the nature of your powers.
9	You make inspiring speeches with surprising frequency.
10	You break into song on beautiful days.
11	Your flesh seems to ripple under your skin.
12	Your irises become blood red with green streaks.
13	You seem to fit in perfectly to natural environments.
14	Your facial features become accentuated by small plantlike growths that cover your cheekbones or brow.
15	Your limbs become long and branch-like.
16	Your teeth look like wicked thorns.
17	Your hair becomes long strands of grass and leaves.
18	Wooden horns emerge from your forehead.
19	Your fingernails become sharp and barbed.
20	Whenever you cast a spell, your Blackthorn heart pulses with crimson energy.

Pact of the Chain Familiar

Warlocks who have been given the Pact of the Chain can choose to summon a Bloodless Wanderer, wooden constructs born from hearts of fallen warlocks, as their familiar.

Bloodless Wanderer