Stormchaser Chimera is a uncommon Creature — Chimera card from The List (PLST), collector number CN2-207. Current market price: $0.29, TCGplayer market prices via Scryfall.
Flying {2}{U}{R}: Scry 1, then reveal the top card of your library. This creature gets +X/+0 until end of turn, where X is that card's mana value. (To scry 1, look at the top card of your library, then you may put that card on the bottom.)