Agent of Treachery is a rare Creature — Human Rogue card from Core Set 2020 (M20), collector number 43. Current market price: $6.48 (foil $8.43), TCGplayer market prices via Scryfall.
When this creature enters, gain control of target permanent. At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.