Blood Eclipse

You invoke your patron's full dominion, darkening the sky with a supernatural crimson eclipse. Blood magic surges through every living creature within 120 feet of you.

When you cast this spell, and at the start of each of your turns for the duration, each hostile creature of your choice within the area must make a Constitution saving throw.

On a failed save, a creature:

• Takes 6d10 necrotic damage.
• Cannot regain hit points until the start of your next turn.
• Has its speed reduced by 20 feet until the start of your next turn.

On a successful save, the creature takes half damage and suffers no additional effects.

While this spell is active:

• You gain resistance to all damage except radiant.
• You regain hit points equal to half of all necrotic damage dealt by this spell.
• Your weapon attacks deal an additional 2d10 necrotic damage.

When the spell ends, your body can no longer sustain the immense strain. Your hit point maximum is reduced by half (rounded down) until you finish a long rest, and you gain three levels of Exhaustion.