Infinity Gauntlet

Enchant creature
If enchanted creature has six different Infinity Stones equipped to it, put half of target opponent's library into his or her graveyard, rounded up. Destroy half of their non-land permanents at random, rounded up. Enchanted creature is indestructible.
"I made what he wanted: a device capable of harnessing the power of the Stones."
-Eitri