Warrior Skill - Counter Attack

[Demagami]

Not sure if any of you realise, but isn't Counterattack a tad overpowered? It gives your humanoid troops a 100% chance to counter back at least 4 times I think. Added to the fact that as a fighter, you have higher attack /defense, this ability is devastating when used on horsemen.

Because horsemen already have an innate physical resistance, boosting it with stoneskin, items and arch mage shield, I am pretty sure horsemen are almost unkillable. Plus, when you can berserk them eventually, it is is just pretty insane.

At the moment, my berserk horseman stack, with a focus on attack, and items that increase physical damage, now kills almost every stack instantly on a critical strike or counter attack.

I am having lots of fun with it, but does it not kind of downplay the abilities of other racial creatures? Undead, for example, seem relatively weak, though I understand that if Counterattack worked with vamps / ancient vamps, it did be crazy.

Any thoughts on this skill?