- Shifting is useless beyond first few levels, not worth talents.
- You want your druid to be a good gunner, but you don't really need to pile up talents for that, my druid was the best damager with a simple +1 crossbow and no talents for it.
- Spells are AOE, but they don't target your team. Most practical are lightnings, even if a little lower damage, they are going to cover the entire battlefield, hit all enemies regardless of how far they are. That makes them more damaging than limited area fire spells. If any spell damage talents, I'd take storm.
- Starting a fight, pop a relentless storm and one of regen spells (they are really powerful), then chain-spam Dancing Bolts to weaken every single enemy and possibly kill off their casters. Then you can focus on debuffs and buffs, like Nature's Mark or Beetle's Shell, or maybe summon a Blight to finish things off.
Come level 9, you can outdamage your Rogue if you use all your Bolts in short succession while fighting against a large crowd.