Warrior's Resolve

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.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6odxk99u5jpb1hxgnfw2ab.