Help Building for Endgame Shaman/Summoner

I'm trying to help my girlfriend build for a Shaman Summoner playstyle as it's her favorite and she thinks the other subclasses are too complex and challenging. She's been playing this game for years and has finally hit level 105. She asked me to help make a build for her but I don't know anything about building or Shaman.

She doesn't have that much money but isn't opposed to grinding to access Mythics, and her biggest problem is not doing enough damage. If there any high DPS or Poison builds, those would be great!