Talk:Sword Art Online Episode 04/@comment-109.132.165.157-20120729110320/@comment-5302351-20120730071000

actually hao could also be correct.

Another explanation though. It could just be a extra skill like Kleins Katana. Also i re-read the translated text of the novel -.- i can't read the raws so correct me if i'm wrong. Kirito states "most of the ten-plus extra skills that had been found up until now, Katana included, had atleast ten people who used each of them. The only exception were my dual blades and one other man's extra skill." Thus only Heathcliff and Kirito's are considered unique while the rest are extra.