Them’s Fightin’ Herds, the four-legged fighting game that started off as a My Little Pony fighter until Hasbro shut it down, is coming out on Steam February 22. Owners of BlazBlue Central Fiction, Guilty Gear Xrd Rev. 2 or Skullgirls 2nd Encore unlock items for the game’s lobbies. Not bad for what started off a fan…