General Kreat, the Boltbringer is a uncommon Legendary Creature — Goblin Soldier card from Foundations Jumpstart (J25), collector number 48. Current market price: $7.33, TCGplayer market prices via Scryfall.
Whenever one or more Goblins you control attack, create a 1/1 red Goblin creature token that's tapped and attacking. Whenever another creature you control enters, General Kreat deals 1 damage to each opponent.