As far as that video goes I think the move being shown after Shadow fang is not the huton refresh. I believe that it is the move that "buffs the next weapon skill" and the weapon skill being buffed is the "3 hit move" at the end. Although I'm torn because in the video it also looks like I'm seeing three new moves. It looks like Huton > Spinning Edge > Mug > Shadow fang > New ogcd move > new GCD move (weapon skill buff?) > jugulate > new gcd (3 hit attack)


This is just my thought on it and I could very well be wrong but this seems to me like what is happening.