The Deep Black Fire

You have been chosen as Erashi's champion and now she will give you the power to bring her to your world, where she will devour the gods and replace them as the new Vampiric Goddess. Her influence to the undead, and the Vampires to be specific, is such that you will have advantage in persuading Vampire spawns into your cause.

Erashi can also grant you the power to control the fire around you and cover the world with ashes in her name. As long as you provide her with worthy sacrifices, she will let you use her powers for your desires.

Some characteristics you may develop are long fangs, horns and cold skin. It varies depending on the individual.

Senses from the Deep of the Abyss

In Darkness, your hearing, smell and touch senses increase as the Ashbringer lends you hers.

Ashen Skin

When you are attack with fire, your skin sheds like ash from your body taking part of the damage away. You gain resistance to fire damage.

Hateful Kiss

The vampiric soul of Erashi allows you cast Vampiric Touch spell with no cost once until a short rest. 

Blood Pact

At level 6 you gain the ability to do a special blood ritual, depending of your intentions.

By Consuming someone's blood you can use the spell Locate Creature on that specific one, up to 3 times until you consume more blood.

By Feeding someone with your blood you can use the spell Sending on that specific one, up to 3 times until you feed them more blood.

Undead Whispers

Gaining the favor of your patron to this level allows you to manipulate lesser vampires to your will and even resist the charms of stronger ones.

Herald's Call

At level 14 you can call upon your patron to manifest through you. As an action, your body will comune with Erashi's, giving you feather covered wings that you can use for three hours  with a speed of 60 feet and from your back two large feral green clawed arms emerge, allowing you to do a 2d12 attack with a reach of 20 feet.

For other purposes, this new appendages possess a strength equal to your charisma and are considered magical weapons. The claws vanish when you are outside of combat, leaving only ashes coming from your back that solidify into claws again if you re enter combat before the time of this ability is up. Once you use this ability you can not do it again until a long rest.