Darkness Beyond Darkness

Players can not start the game with this card
in their library.
Shroud
At the beginning of each opponent's endstep, that player loses half their life rounded up, has their maximum hand size reduced by two(this effect lasts indefinitely), then puts a -1/-1 counter on each of
their creatures for each card they drew that turn.
{t}{1}{b}{b}{b}{b}: Target opponent separates their permanents into three piles. That player sacrifices
all permanents in a random pile.