Quote Originally Posted by sanahtlig View Post
According to the <url removed because I'm not allowed to post links, apparently>, which uses more precise wording than the in-game skill description, the effect only applies to Arthur herself.
Ah, thanks! It really would be too good to be true if it were a party wide multi-attack buff.

Also, thank you for the link to the JP wiki. This should help inform me on what to look forward to with future team/weapon builds.