Thoughtweft Trio is a rare Creature — Kithkin Soldier card from Lorwyn (LRW), collector number 44. Current market price: $0.63 (foil $2.53), TCGplayer market prices via Scryfall.
First strike, vigilance Champion a Kithkin (When this enters, sacrifice it unless you exile another Kithkin you control. When this leaves the battlefield, that card returns to the battlefield.) This creature can block any number of creatures.