Try to build for salamander, its better dps than storms if built correctly. Also a very good utility item. You should choose between celestial and frontier spellbook as you should only have 1 long range dps spellbook
It honestly depends on your damage, Salamander is very good depending on which one you have. I would say use Salamander Blade of throne Darktoad Celestial and possibly greater storms because of it's ultimate.