Games very fun keeping track of even and odd numbers of the enemy's hp but the living armor and the sandworm when there are multiple of them or them together is a very strong combo that's usually a game over.
there high pleasure/pleasure attack, unique ability and ability to remove armor makes them very deadly if there's multiple of the same one. the sandworm basically ignores pleasure attacks if she does dig and attacks instead. overall they easily eat through your items or armor