Is Bristlebane Battler legal in Standard, Modern, and Commander?

Bristlebane Battler is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Bristlebane Battler

Q: What type of card is Bristlebane Battler?

Bristlebane Battler is a Creature — Kithkin Soldier. Its oracle text reads: "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."