Inspiring Paladin is a common Creature — Human Knight card from Foundations (FDN), collector number 18. Current market price: $0.18 (foil $0.23), TCGplayer market prices via Scryfall.
During your turn, this creature has first strike. (It deals combat damage before creatures without first strike.) During your turn, creatures you control with +1/+1 counters on them have first strike.