KMST 1.2.480 Adventurer Revamp and Skill Changes

Few questions about Bowmaster, if yall can answer..

1) Does Hurricane pierce through monsters, therefore now being a mobbing skill? Or still 1 v1?

2) Is the Arrow Blaster + Hurricane combo the best for training/mobbing? Or must we use the ugly Uncountable Arrow :/

3) Does Phoenix go off on her own, as shown in the video kinda?

Thanks