[Ranylyn]

Considering how few sources of Guard Break there are, and the drawbacks to them (Such as making the target unmarkable for several turns despite most other effects being a better use of that Claret Call, or taking up equipment slots) I'd say this sounds more than fair.

EDIT: Forgot about Light Tomahawk. But that's more of an outlier than the norm. And LT alone isn't grounds for disregarding the suggestion. (Not to mention if you have MA equipped for LT, it's easy to get past parry skills anyways.)