>>55476790Palkia's ability wouldn't affect things like Light Screen, Reflect, or Tailwind so I think that Dialga's ability is still on par with Palkia's. Also, I gave Origin Dialga the more reliable signature move and improved stat spread. Origin Palkia may have a better ability in some cases, but its new signature would do nothing sometimes.
You may be right though. I just wanted to think up something powerful for both of them.