Agent of Treachery is a mythic Creature — Human Rogue card from Avatar: The Last Airbender Eternal (TLE), collector number 9. Current market price: $3.37 (foil $5.41), 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.