Power Charge Cycling Ball Lightning Lich
Can also be done with Fireball or Comet, may just need to tinker with the trigger rates and mana consumption.
I generally use Arc and swap a trigger to Archmage on weapon set 2 with Embitter + Freeze for Mapping so I can keep the BL setup for bosses. Generally one BL cast will kill a map boss from the triggers.
https://reddit.com/link/1quwjtx/video/nk77ihdr3bhg1/player


