Stangg is a uncommon Legendary Creature — Human Warrior card from The List (PLST), collector number A25-218. Current market price: $0.05, TCGplayer market prices via Scryfall.
When Stangg enters, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. Exile that token when Stangg leaves the battlefield. Sacrifice Stangg when that token leaves the battlefield.