Blood Ascension

You transcend your mortal limitations, becoming a living avatar of blood magic. Your body transforms into a semi fluid crimson form, and you gain the following benefits for the duration:

     You gain immunity to necrotic and poison damage

     You gain resistance to all other damage types except psychic

     You can move through spaces as narrow as 1 inch without squeezing, and you can move through other creatures’ spaces

     You gain a flying speed equal to your walking speed

     You gain 100 temporary hit points

     You can cast blood magic spells of 5th level or lower without taking damage from blood sacrifice

     You can use your action to unleash a wave of hemomantic energy in a 30-foot cone. Each creature in the area must make a Constitution saving throw or take 10d8 necrotic damage and be stunned until the end of your next turn. On a successful save, a creature takes half damage and isn’t stunned.

     As a bonus action, you can teleport to a space you can see within 60 feet, leaving behind a trail of blood that disappears at the end of your next turn

While in this form, your melee weapon attacks deal an additional 3d8 necrotic damage. If this form is reduced to 0 hit points, the spell ends and you revert to your normal form with 1 hit point remaining.

Blood Sacrifice. When casting this spell, you take 7d4 damage as your blood transforms your essence.