Not sure if this is a bug or working as intended. After trying this out on a few mobs and VW NMs, this ability seems to do the opposite of what was described. The bash damage does upwards of 1k (at least with aegis) and has no noticeable effect on monster accuracy or attack. Damage dealt to me was the same before during and after using the ability, and there was no noticeable increase in evasion. Mobs tested were Tsui-Goab and Pil.