1) staff is not so good, if you put it on a forum you might get 5k
15% HSR is max so 12% is not that good, 10-16 dmg is max so the dmg sucks, +4energy is oké (2k~) and +17% is usefull (3k~)
2) +- the same for air staff
3) bad dmg, bad inherent BUT +18% vs charr is like 80k~ (if lucky i think)!!!