Thanos The Inevitable

{t}{w}{u}{b}{r}{g}{p/c} All players turn creature cards in play face down, pick them up and shuffle, and then discard half the cards rounded down at random. The rest return to play face up.
One infinity stone(s) — +1+0
Two infinity stone(s) — +1+1
Three infinity stone(s) — +2 +2
Four infinity stone(s) {line} +2 +2 - Annihilator 1
Five infinity stone(s) {line} +2 +2 - Annihilator 2
Six infinity stone(s) {line} +2 +2 - Annihilator 4