Bushido: Kaihei Pack

Description from the publisher:

These muscled hunters are pack animals and whilst fearsome in isolation they are truly terrifying when running in a group. Lean and agile they bound across the battlefield, throwing themselves with great momentum at their quarry, barrelling them to the ground whilst another in the pack snaps and tears at the exposed vital areas of the prey. Teeth and claws as hard as steel they can tear through even the toughest of Minimoto iron with a concentration bite.