I'm playing a ranger right now with 2 sound amplifier which provides 50% variable cast time reduction, but when casting arrow storm, I can still see the cast bar.
I also equipped a tree sprout for additional 5% variable cast time reduction but I still have cast time.
I'm just trying this out if I can use 2 sound amplifiers to allow me to wear CVB instead of autumn hairband for leveling.
Also, does Evil Dragon Armor work on arrow storm?