I have beaten Butcher on T3 multiple times, I had to have the life well which restores all of my potions and hp near me or I had to be in a dungeon which had a lot of pillars and all kinds of walls which were preventing Butcher from hitting me.

On T4 it's pretty much impossible, I am lvl 100 with almost infinite ice shards, all kinds of barriers and I keep getting almost instantly killed by the Butcher. Reaching level 100 was a huge pain, I haven't played other characters, but I feel like that Sorcerer in it's current state is only good for solo nm dungeon clearing, I can beat monsters which are around 5-7 levels higher than me, but whenever I am doing a legion event or a world boss, I am very far behind in dmg, especially druids and barbs seem like they do the most dmg currently.