Flaring Flame-Kin is a uncommon Creature — Elemental Warrior card from Conspiracy (CNS), collector number 142. Current market price: $0.05 (foil $0.10), TCGplayer market prices via Scryfall.
As long as this creature is enchanted, it gets +2/+2, has trample, and has "{R}: This creature gets +1/+0 until end of turn."