Goblin Chieftain is a rare Creature — Goblin card from Duel Decks: Merfolk vs. Goblins (DDT), collector number 41. Current market price: $5.52, TCGplayer market prices via Scryfall.
Haste (This creature can attack and {T} as soon as it comes under your control.) Other Goblin creatures you control get +1/+1 and have haste.