Oppen-Heider Showcase (~40-50M Damage Heidemarie vs. Colossus)
Damage breaks because of bug and shows the first number as '0' because it cuts off any number past 7-digits currently.
Test run without proper memory fragments (using FoE for conq set but don't have my conq set equipped too lmao) or perfect ally gear n' stuff (wanted to make sure that e6 Heide is playable on this boss since she has a ton of issues because of how fast her e6 kills hands and them triggering stun on the boss).
E1 is all you need to optimize your damage for your setup (E2 and E6 are sometimes downgrades for nuke, though not by much and nothing you can't play around since at least they don't trigger a lot of hit-debuffs like Kayron E2 does (also easier to play around)).
There's a clip of an E1 Heide in same setup hitting for 125M, so I def could optimize WAY further (no ally tentacles, no intellect of discord, no critdamage engravement, not using right set, only doing 3 WoL Orlea not 4, low crit-damage, inefficient turns because of deck optimizations, etc.)
Without stun (colossus 6x dt-mult effect) its around 7M damage (translates to 700k/turn which is still better than any current consistent damage set-up).
Deck at end of clip.