Board Thread:New on Sword Art Online Wiki/@comment-91.100.100.12-20130621172420/@comment-3551173-20130621173245

You mean the writer right? this is based on a light novel. Hmmm there are 8 other uniques skills, Dual Blades, Holy Sword, and Katana are known. There might be something in the meta editions check there or ask B-T.