Warrior's Resolve is a rare Enchantment card from Final Fantasy Commander (FIC), collector number 465. Current market price: $2.44 (foil $1.99), TCGplayer market prices via Scryfall.
Creatures you control have training. (Whenever a creature you control attacks with another creature with greater power, put a +1/+1 counter on the creature with lesser power.) At the beginning of your end step, if you control a creature with a +1/+1 counter on it that attacked this turn, draw a card.