Inner-Flame Igniter is a common Creature — Elemental Warrior card from Modern Masters 2015 (MM2), collector number 120. Current market price: $0.03 (foil $0.24), TCGplayer market prices via Scryfall.
{2}{R}: Creatures you control get +1/+0 until end of turn. If this is the third time this ability has resolved this turn, creatures you control gain first strike until end of turn.