Bituminous Blast (Surge Foil) (40K-221) - Warhammer 40,000 Commander 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.)
Bituminous Blast deals 4 damage to target creature.