Psychic Drain

House Dimir Spell
Level 3
Casting Time: 1 Action
Duration: Instantaneous
Range: Touch (?)
You Evoke the ancient power of the Moroii to steal your opponents vitality. Make a Melee Spell Attack against a living creature in range (?), that creature takes 3d10 Psychic Damage and takes a number of years off the end of their lifespan equal to half of the damage given. You heal HP equal to the number of years taken off their lifespan.
When cast at higher levels, this spell does 1d10 more for each level above 3rd.