Need some help on building a gunslinging sorcerer

I plan to make this build http://grimcalc.com/build/1009-HQcZP2

My first choice of damage is obviously fire. I intend to abuse the power of blast shield and maiven’s sphere to make a tanky gun slinger.

I need suggestion on:

  • What skill to focus on?
  • What item set should I use? Mid game and end game suggestion are good
  • Devotion set up
  • Can I focus on just fire, or should I pick a secondary damage type as well, like aether or chaos?

Fire Strike, obviously. Why do you have any doubts there?

I dont think there is any legendary set that fits you. Just use good legendary or MI pieces for each slot. Items like Shadowflame Mantle and Extreminus are very good.

Well, Solael’s Witchblade is mandatory, as well as Manticore or Rhowan’s Crown, the rest is up to you.

You will get chaos and lightning damage naturally, from Fire Strike upgrades. Also, if you go for Abomination, you’ll get even more chaos damage (but then, you’ll need another class, probably).

Does Crown power even works with chaos? I think I have to go for Manticore if I want fire/chaos

Crown is just elemental rr, if u want chaos rr u need acid spray.
Why dont u go pyromancer?
It gives nice chaos damage and cof

Yeah, i fond pyromancer being much better choice. Resistance reduction alone for CoF will boost your DPS more than all Arcanist passives combined, and Possession gives the same tankiness as Maiven’s sphere, but it actually increases your DPS instead of decreasing it.

Yeah after I weighted the devotions in, I think I will end up with pyromancer, since fire/chaos/vitality is more straightforward comparing to sorcerer

http://www.grimtools.com/calc/M2gWaB2y

Now my only concern is that whether I spread skills too thin

Do yourself a favor and stick with Pyromancer if you want a Fire Strike gunslinger. Fire/Chaos is the only supported damage type by gear for gunslingers and Pyro specializes in that combo.