Siege-Gang Lieutenant is a rare Creature — Goblin card from The List (PLST), collector number M3C-113. Current market price: $4.48, TCGplayer market prices via Scryfall.
Lieutenant — At the beginning of combat on your turn, if you control your commander, create two 1/1 red Goblin creature tokens. Those tokens gain haste until end of turn. {2}, Sacrifice a Goblin: This creature deals 1 damage to any target.