Diffusion Sliver [Magic 2015]

Set:	Magic 2015
Type:	Creature — Sliver
Rarity:	Uncommon
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