Stormchaser Chimera is a uncommon Creature — Chimera card from Conspiracy: Take the Crown (CN2), collector number 207. Current market price: $0.06 (foil $0.24), 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.)