http://hellgate.ingame.de/charplanner/evoker/?l=50&aa=2s&a=0000476a&s=030305020030003401a000004a10If you go with fire, you should take smth like that..not maxing fire storm, not worth later to use it later, believe me.. If you want fire element, get 2 artifacts with +3 cast ember..
After life = from item imo. as I got it from an item.. and not to lvl 10, please XP even broms lvl 7 AND afterlife .. nn^^ broms lvl 3-4 also enough.
firestorm = crap imo as I said... take arc legion instead of it.. dmg is as good as firestorm and you can attack from a bether range and more enemys, so.. tempest is a must have atleast lvl 7 ( artifakt may have +3^^)..
broms = lvl 3 enough. spectal curse = must have too imo.. nice in mass, atleast lvl 5-7, and if you want to go with fire tree, dont max firestorm.. get it to 3 for others.. hellfire is ok to max ( dont know if flameshards is it worth tho, but not needed if you got tempest, arc legion, firestorm) ^^
dual focus you may get abit higher xP if your main skills will be tempest, arc legion, fire storm and then spectal curse, broms.. thats enough. cast fire storm infornt of you, tempest and spamm arc legion and they'll die ^^ and spectal curse maybe^^
venom armor lvl 4 and 2x3 venom armor focis.. or higher without focis, or just 1 focusartifakt dont know.. atleast venom armor should be at lvl 10 when you use it. at lvl 50 and max = 400 armor. a must to have imo^^
Got evoker lvl 43 atm with VA, tempest, arc legion, spectal curse as main skills.. works fine also without hellfire