Marauding Raptor is a rare Creature — Dinosaur card from Core Set 2020 Promos (PM20), collector number 150p. Current market price: $1.52 (foil $2.50), TCGplayer market prices via Scryfall.
Creature spells you cast cost {1} less to cast. Whenever another creature you control enters, this creature deals 2 damage to it. If a Dinosaur is dealt damage this way, this creature gets +2/+0 until end of turn.