Literally The Greatest

When Literally The Greatest enters the
battlefield, for each player exile a random card
from THE CUBE face down. Enchanted player
can play cards exiled with Literally The Greatest,
and may spend mana as though it were any color
to play those cards. At the beginning of each end
step, exile a random card from THE CUBE
facedown. Whenever one or more creatures deals
combat damage to enchanted player, attach this
card to that player. Return cards played from this
card to THE CUBE if they le