Psychosomatic Exchange

Psychosomatic Exchange deals damage to target player equal to the number of cards in their hand. Target player shuffles their hand and graveyard into their library, then draws seven cards. Exile Psychosomatic Exchange.
Overload {3}{u}{r}(You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each".)