SCP-106

Wither
{4}{b}{b} Choose at most 4 cards from each opponent to enter a second game where each opponent has 13 health and all creatures in this game get a -1/-1 counter at their controller's up keep the winner gets to choose 2 cards to come back into the main game if there are no creatures in the game then the main game resumes with all creatures involved going to graveyard (They keep the -1/-1 counters)