Done it post nerf, all I did was have the most fast and are some what immune to status like walls Lil death and inferno while I gassed and baited with balloons using wes and recoil (to avoid high losses) and it went good bc he was not healing at all and 2 stacks of vulkan made him down to 4k hp
this lvl is ez as hell i beated it with detonation with speed battler chair basiclly a speedrunning strat since i was tired and wanted too get bricks fast