Which builds are capable of doing it atm?

Lightning spear I believe is the only capable atm

Last I had seen lightning spear had capped out at 157 and stormslide had done a 148. But that was like 4 or 5 days ago.

Rogue only hit 140 ;_;

I just cleared 120 and noticed the monster level no longer goes up. Does the HP just start scaling up until you can't kill enough in time or does the damage increase as well.

Saw a leak of an official leaderboard from Mekuna. Apparently sorc and landslide druid. He also just cleared 150 with firebolt recently