hi kratos here what the hack is hells fery[im a suckish speller:P]

Hell's Fury is a skill you can obtain after a quest you do.

To get it, you need to do the sigi the galdr quest in nordagh, and then after the yeti quest Aziza gives you, another quest will be the tablet. Look in your inventory and press YES if you want to read it. You'll end up in a white space with a man who gives you something. Now you'll need to do the final quest for Aziza, kill Saranentutet, and go into the corner just south of saraa izel. Go into the portal and you'll play some summoners Air-Fire-Earth-Water, then saranetutet. I suggest using ranged classes because hell'd fury is an unblockable attack that does a lot of damage(Once 3500 for me). Whoever survives gets hell's fury.