Kuldotha Ringleader is a common Creature — Giant Berserker card from Mirrodin Besieged (MBS), collector number 70. Current market price: $0.04 (foil $0.25), TCGplayer market prices via Scryfall.
Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) This creature attacks each combat if able.