Apocalyptic Horseman of Death

You are able to borrow from the Power of the Apocalyptic Horseman of Death. You can use his power to manipulate the spirits of the Dead and call upon them when in need.

Grimoire of Souls

Beginning at first level, your Patron bestows upon you a Grimoire of Souls. With this Grimoire, when you kill a creature with a soul, you can store that soul for later use. You can store a number of souls equal to your Charisma Modifier. As an action on your turn, you can absorb the power of one soul from your Grimoire to do one of the following effects.

1. You can cast one Warlock Spell you know without expending a spell slot or material components. (This will cast the spell at the level of the spell, not the level of your spell slots)

2. You can temporarily place this soul into a corpse. You either raise a Zombie or a Skeleton, depending on the state of the corpse. Your DM will have the statistics.

3. You can absorb the power of the soul to heal yourself. You may expend one of your Warlock Hit Die. 

If you lose your Grimoire or it gets destroyed, You can perform a ritual that takes 8 hours to complete and your Patron will bestow upon you a new one, however it will be empty.

Summon Grantusk

At level 6, you gain the ability to summon Grantusk, the Horse of Apocalyptic Death. As an action, you call forth Grantusk from the Ethereal Plane, He is able to stay on the Material Plane a number of Hours equal to your charisma modifier. You can summon and dismiss him as often as you like as long as hit time does not exceed the maximum per day. His time resets at dawn. You also maintain a constant telepathic link with Grantusk.

Envoy of Death

Beginning at 10th level, your patron has begun to trust you. Now, whenever you kill a creature, you temporary hit points equal to 1d8+ your Warlock level. Additionally, any creature you kill can not be raised from the dead except by you or your Patron.

Mantle of Death

At 14th level, you gain the ability to take on the Mantle of the Apocalyptic Horseman of Death. As an action, you transform yourself into an Avatar of your patron for up to 1 minute. You gain the following benefits.

-Your movement speed increases by 20 feet

-You are immune to necrotic and poison damage

-Your Spell and Weapon attacks deal an addition 3d8 Necrotic Damage on hit

-You gain 4d8 temporary hit points.

Expanded Spell List

The Apocolyptic Horseman of Death lets you choose from an additional list of spells beyond that which is granted by the Pact Magic Feature.