Flowerfoot Swordmaster is a common Token Creature — Mouse Soldier card from Bloomburrow Tokens (TBLB), collector number 1. Current market price: $0.33, TCGplayer market prices via Scryfall.
Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, Mice you control get +1/+0 until end of turn. (This token's mana cost is {W}.)