Urdnan, Dromoka Warrior is a uncommon Legendary Creature — Human Warrior card from Foundations Jumpstart (J25), collector number 34. Current market price: $0.34, TCGplayer market prices via Scryfall.
When Urdnan enters, put a +1/+1 counter on target creature. Whenever you attack, target attacking creature with a +1/+1 counter on it gains first strike until end of turn. If that creature has two or more +1/+1 counters on it, it gains double strike until end of turn instead.