The Infinity Gauntlet

{5}, {t}: Add an infinity stone from your library
to your side of the field.
Equip: {1} (Must be a legendary creature, gain
+2/+2 for each infinity stone you control)
Equipped creature gains "{t}: If you control 5+ infinity stones, choose an opponent. They must
flip a coin for each of their permanents (Heads =
exile and tails = stays). Then destroy The Infinity Gauntlet and the creature it was equipped to."