Blood Shards

5th-level necromancy

Casting Time: 1 bonus action

Range: Self

Components: V, S, M (a drop of your blood)

Duration: 1 minute

You draw vitality from yourself, corrupt it, and fill your strikes with the corrupted essence. Until this spell ends, each time you hit a creature with a melee weapon attack, roll your choice of 1d4, 1d6, 1d8, or 1d10. You lose a number of hit points equal to the number rolled, and the target takes necrotic damage equal to three times that amount. The spell ends early if you end a turn below half your hit point maximum.