Deceit is a mythic Creature — Elemental Incarnation card from Lorwyn Eclipsed Promos (PECL), collector number 212p. Current market price: $2.85 (foil $4.74), TCGplayer market prices via Scryfall.
When this creature enters, if {U}{U} was spent to cast it, return up to one other target nonland permanent to its owner's hand. When this creature enters, if {B}{B} was spent to cast it, target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Evoke {U/B}{U/B}