Imoti, Celebrant of Bounty - Borderless - Showcase - Halo Foil [MUL-173]

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.) Spells you cast with mana value 6 or greater have cascade.