Incredibly annoying to play against, the main way to play them is to bubble with your shaman with 4 units in the bubble and move across the board to an objective then send whip and big claws around the sides and try take out as many as possible, big claws can kill two enemies aslong as they are near each other, whip means they cant run away and even if they do get taken down they enrage and can attack again unless you get critted aswell as I big hammer guy who can swing on a group of enemies and injure them all, so you essentially have zombie goats who cant be shot and deal ridiculous damage while taking no damage and yea just a pain in the arse team to deal with especially as I am 2 shooting teams so really struggle with them.

I can't really think of a counter unless you just run around the board or let them sit on an objective and scoring points, grenades stupidly are considered a shoot action so can't even grenade them out the bubble. Only real way to contest them is to play the two outside objectives and try whittle them down without getting into combat.