Tajic, Blade of the Legion is a rare Legendary Creature — Human Soldier card from Dragon's Maze (DGM), collector number 107. Current market price: $0.33 (foil $2.36), TCGplayer market prices via Scryfall.
Indestructible Battalion — Whenever Tajic and at least two other creatures attack, Tajic gets +5/+5 until end of turn.