Facing the upgraded Uber Lilith after recent Season 3 patch in Eternal, Phase 2 becomes a daunting challenge with the barrage of fiery souls. However, to my surprise, Ice Armor proves to be a lifesaver, preventing instant death upon collision with the fiery souls, as demonstrated at 1:14 and 1:28.
Build - Blizzard Sorc
Maxed Cooldown Reduction (CDR) and Armor
Shako boosts defensive skills
Oculus gives 15 points to teleport and 30%+ damage
X'Fall adds extra 10.3% to cooldowns
Esu's Heirloom + amulet speed boosts critical strike chance.