Creeping Insanity

At the beginning of your end step, put a madness counter on Creeping Insanity.
At the beginning of each player's upkeep, that
player discards a card for each madness counter
on Creeping Insanity.
Discard your hand, put the top 5 cards of your
library into your graveyard: Creeping Insanity's controller sacrifices it. Any player may activate
this ability.