If you played the original FFV game, you will notice that the stars meant that he has mastered that job class. In this case mastering the mime job class is his EX mode. He gets boosts for every attack making them unique copies of other skil
Butz's skills are copies of other characters. He takes skills from cloud, squall and a few more.
In the end of the Ex Burst he combines all those weapons into his unique brave blade.
In the storyline, Butz is a super coward haha!
Hes not a mime Butz, or Bartz is a FREELANCER. its the first job in FF5 it lets ya use any weapon in the game meaning he can use any of the main chars weapon. To prove hes not a mime is easy....Mime copies the moves in that battle.. he does
Don't forget that the theme playing during the whole video is Clash on the Big Bridge =) Too bad Gilgamesh isn't it,guess Bartz/Butz is your answer for a Gilgamesh type character
My first time even hearing of Exdeath and I didn't expect him to be a defensive character. Butz uses mime, which is why his skills are all copied from the other heroes. Look carefully at his limit break and you will see weapons from others.