I played an Elemental Ferocity/Wisdom mage. So this fight was rough. Phase 3 in particular. Wiped 5 times. Most important thing is I Respec'd my stats and put Toughness at 200. Currently this is the most useful stat in the game. IMO
I had been using Livor Mortis up to this point already. So using his Taunt to keep Edric on It, coupled with my new Toughness, I beat the next attempt with no tokens lost. I had known the fight so well at that point that it was simple. No gear changes. No skill Changes. Just didn't get one shot by a mistake.
Skills:
Anomaly - Lightning Rune
Tear of Etheliel - Standard Ice
Bulwark of Dawn - Damage Rune
Livor Mortis - HP and Taunt Rune
R-click
Consuming Embers - Larger AoE Rune/ - Cost Rune
Edit: spelling