Imoti, Celebrant of Bounty (MUL) (173) / Borderless / Showcase / Halo Foil

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 in a random order.) Spells you cast with mana value 6 or greater have cascade.