Vampire Touch

You hold out your hand, causing their blood to burst from their veins, turn into a fine mist, and absorb into your skin. Make a melee spell attack against the target. On a hit, the target takes 1d10 necrotic damage, and you regain health by the same amount. The target must make a constitution saving throw or be infected with Porphyric Hemophilia.

The spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).

This spell is exclusive to vampires, and cannot be taken as a spell for any class.