Brigid, Who's Seen Some Stuff is a rare Legendary Creature — Kithkin Archer card from Mystery Booster 2 (MB2), collector number 510. Current market price: $0.23, TCGplayer market prices via Scryfall.
Vigilance Nimble (This creature can't be blocked by creatures with power 3 or greater.) Kithkin you control have thoughtweft. (A creature with thoughtweft has all printed keyword abilities of other creatures you control with thoughtweft.)