Quote Originally Posted by Rater202 View Post
It's the second one.

Ragyo tried to brute force past Ryuko's regeneration and it did absolutely nothing.

Shadow can only win if 1: He manages to figure out her exact weakness in h middle of a fight to the death and steals her weapon or 2: Death Battle ignores facts to give the win to Shadow the way they did with Carnage vs Lucy, Ben 10 vs Green Lantern, or Toph vs Gaara.

Or break their own rules and decide it by narrative instead of by feats, like they did in Goku vs Superman 2.

Or just flat out cheat like they did in Goku vs Superman 1(pay close attention to when they're calculating Goku's spread, they divide when they should have multiplied)
Ok, here's my train of thought. Please interject if there are any points you disagree with.

Shadow can stop time for her using Chaos Control

Regeneration cannot take place while time is stopped.

Destroying her brain or heart kills her for death battle purposes. This is normally impossible due to regenerating faster than damage can be dealt, needing a special macguffin to overcome the regeneration.

So if Shadow stops time and carves out her heart while she can't regenerate due to the time stop, that's a victory for Shadow.