Impetuous Protege is a uncommon Creature — Human Warrior card from Battlebond Promos (PBBD), collector number 19s. Current market price: — (foil $0.25), TCGplayer market prices via Scryfall.
Partner with Proud Mentor (When this creature enters, target player may put Proud Mentor into their hand from their library, then shuffle.) Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the greatest power among tapped creatures your opponents control.