Psyche Drain, Variant (5e Spell)
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You siphon the intelligence as well as some life force from a sentient creature to slightly heal your wounds and fortify your intellect. Make a melee spell attack against a creature within your reach. On a hit, the target takes 5d8 psychic damage, and you regain hit points equal to 1/4 the amount of psychic damage dealt, rounded up.
At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, psychic damage increases by 1d8 per additional level.