I am starting this thread as I wish to really understand this specific ability.
Bugs aside [if it still exists], how does it work and what is this Debuff?
Is the Debuff effect taking effect only during bleed and duration of armor break?

I give an example here on how I understand it and many thanks to point out inaccuracies.
1/ At the start of fight; nothing happens.
Correct?
2a/ First parry, and opponent is stunned.
Does this count as a debuff effect?
If yes, it’s strange as opponent can’t retaliate, so there is no DAA working?
2b/ Hitting opponent with any combination of Light, Medium or Heavy attack
Does this count as a debuff effect?
If yes, same as 2a/
3/ Opponent’s bleed and armor break on Special
I count the number of seconds while bleeding or armor break is on and opponent’s DAA is reduced by 85%.
Is this correct?
4a/ When opponent’s health drops to below 25%
I am clueless on what is Final Strike. Is this
the Debuff?
4b/ For unawakened Electra, and opponent’s health drops to below 15%
Is this
the Debuff?
5/ Is opponent’s passive defensive ability affected?
6/ Does She-Hulk automatically reduces Electra’s abilities?

a/ is it an iteration; champs ability affecting one another in a loop or
b/ is it a one off sequence; Electra will always come out worse off against She-Hulk with that ability to reduce opponent’s DAA by 85% being reduced by 14.04%?
Many thanks for all the help.