Bristlebane Battler is a rare Creature — Kithkin Soldier card from Lorwyn Eclipsed (ECL), collector number 325. Current market price: $0.43 (foil $0.81), TCGplayer market prices via Scryfall.
Trample, ward {2} This creature enters with five -1/-1 counters on it. Whenever another creature you control enters while this creature has a -1/-1 counter on it, remove a -1/-1 counter from this creature.