Barbflare Gremlin is a rare Creature — Gremlin card from Duskmourn: House of Horror Commander (DSC), collector number 26. Current market price: $0.65, TCGplayer market prices via Scryfall.
First strike, haste Whenever a player taps a land for mana, if this creature is tapped, that player adds one mana of any type that land produced. Then that land deals 1 damage to that player.