Shardless Agent is a rare Artifact Creature — Human Rogue card from Judge Gift Cards 2015 (J15), collector number 2. Current market price: — (foil $5.12), TCGplayer market prices via Scryfall.
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.)