Diffusion Sliver (Extended Art) [Secret Lair Drop Promos]Set: Secret Lair Drop Promos Type: Creature Sliver Rarity: Rare Cost: {1}{U} Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}. The hive shimmered, and its walls seemed a living mirror. Hastric, Thunian scout