Stangg, Echo Warrior is a rare Legendary Creature — Human Warrior card from Dominaria United Commander (DMC), collector number 42. Current market price: $0.33 (foil $0.39), TCGplayer market prices via Scryfall.
Whenever Stangg attacks, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. It enters tapped and attacking. For each Aura and Equipment attached to Stangg, create a token that's a copy of it attached to Stangg Twin. Sacrifice all tokens created this way at the beginning of the next end step.