[Esther]

That kind of makes sense. They were relying on their Guard to protect their squishy vitals, and they didn't expect to have their shield/icepoint guard/naga scales/weapon in a hand with a ring of the knight on it/etc. to be knocked away, so they weren't ready for the attack to hurt so much.

The problem is that Guard Break skills already remove Guard before dealing their own damage. Perhaps we could have a difference between...

"Guard Break," which would be reduced by Guard but remove said Guard, and cause the very next attack the target is hit by before the Guard Breaker's turn is over to deal X% bonus damage, where X is the percentage of the Guard being Broken's reduction.

and...

"Guard Pierce," which would ignore Guard entirely, and neither be reduced by, nor remove the Guard status.