Mushroom Mania

Each player shuffles all non-land permanents
they control into a singular face-down pile.
Split that pile into 4 evenly divided face-down
piles. Then, each player choses a pile that hasn't
already been chosen by another player. Each
player gains control of all permanents in the pile
they chose.
"Can you handle the chaos, the destruction, the
absolute carnage? What do I mean, of course you can
you're a literal wizard!"