Wizards of the Coast First Sliver - Legendary Creature 7/7

Legendary Creature - Sliver. WUBRG. 7/7. Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Sliver spells you cast have cascade.