Baal's Burst max damage test
C2 Baal Max Resolve + Benny burst + C6 Sara.
Level 80 Baal + level 80 Englufing Lightning (attack stat of 2,351, crit rate at 45.4% and crit dmg at 96.6%)
Level 60 Benny + lvl 80 Festering Desire
Level Sara + lvl 90 Amos' Bow
Baal's talents were at level 5 (Base DMG 531%, 5.15% initial/0.96% ATK DMG per stack)
Benny's Burst was at 6 (84% ATK bonus ratio at 575 base (+269))
Sara's Skill was level 9 (73% ATK bonus ratio at 759 base (+910) + C6 60% Crit DMG to Electro DMG)
Xinyan was level 20 and only there for shields and pyro resonace (+25% ATK)
All this resulted in a 140,992 attack.
These numbers and stats are for my comparison if I choose to do this again with leveled up talents, weapons and characters