This is an arcane wizard build. It uses Energy Armor with the Energy Tap rune & Astral Presence passive to manage AP.
For damage, it uses Magic Missile (Split), Disintegrate (Convergence) and Meteor (Meteor Shower) to deal with multiple different targets. All three are buffed by a Sparkflint-runed Familiar. The Arcane Dynamo passive provides additional damage to Meteor or Disintegrate. Additionally, Meteor will put Conflagaration on targets.
Finally, Mirror Images runed with Duplicates are used to keep enemies distracted while you can deal with them.