Blood Splash

You prick your finger, taking 1d4 damage which can't be reduced in any way. The drop of blood grows in size and you hurl it at an enemy within range. Make a spell attack roll. On a hit, the target takes 1d12 points of necrotic damage.

At higher levels, the amount of damage you take and deal are increased. At 5th level, you take 2d4 damage and deal 2d12 damage, at 11th level, you take 3d4 damage and deal 3d12 damage, and at 17th level you take 4d4 damage and deal 4d12 damage.