Roughshod Duo is a common Creature — Mouse Raccoon card from Bloomburrow (BLB), collector number 150. Current market price: $0.21 (foil $0.29), TCGplayer market prices via Scryfall.
Trample Whenever you expend 4, target creature you control gets +1/+1 and gains trample until end of turn. (You expend 4 as you spend your fourth total mana to cast spells during a turn.)