Commander Mustard is a rare Legendary Creature — Human Soldier card from Ravnica: Clue Edition (CLU), collector number 6. Current market price: $1.07, TCGplayer market prices via Scryfall.
Vigilance Other Soldiers you control have vigilance, trample, and haste. {2}{R}{W}: Until end of turn, Soldiers you control gain "Whenever this creature attacks, it deals 1 damage to defending player."