Throat Wolf is a rare Summon Wolf card from Mystery Booster Playtest Cards 2019 (CMB1), collector number 65. Current market price: $2.00, TCGplayer market prices via Scryfall.
You may cast Throat Wolf during an opponent's combat phase. Firstest strike (This creature deals combat damage to creatures before creatures with first strike.) After each opponent's first combat phase of each turn, there is an additional combat phase. Only Throat Wolf can attack during that combat phase.