Sundial of the Infinite [M12 - 218]

Rarity: R #: 218 Creature Type or Sub Type: Artifact Rules Text Contains: 1, T: End the turn. Activate this ability only during your turn. (Exile all spells and abilities on the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)