The Infinity Gauntlet

X is equal to the number of Infinity Stones you control.
Equip Player: {x}{x}
{t}: Target Infinity Stone becomes untapped.
{t}: If you control both the Space and Power stones, destroy target permanent.
{t}: If you control both the Time and Mind stones, take up to two extra turns after this one.
{t}: Exile at random half of your opponent's permanents. Activate this ability only if you control 6 or more Infinity Stones.