TVB-Battle hub

I have mistakenly stepped into something I'm not sure I'm proud of...

Extreme Difficulty = 60/40 Win Rate
High Difficulty = 70/30 Win Rate
Medium Difficulty = 80/20 Win Rate
Low Difficulty = 90/10 Win Rate
No Difficulty = Stronger character would have to be actively trying to lose
Negative Difficulty = Impossible for weaker character to KO stronger character
Beyond Negative Difficulty = Impossible for weaker character to so much as damage stronger Character