Wild-Magic Sorcerer
From Forgotten Realms Commander set
Wild-Magic Sorcerer
Creature — Orc Shaman
4/3
The first spell you cast from exile each turn has cascade. (When you cast your first spell from exile, 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.)