Shardless Agent [Planechase 2012]

Set: Planechase 2012 Type: Artifact Creature — Human Rogue Rarity: Uncommon Cost: {1}{G}{U} 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.)