These aren't just reskins either, they're brand-new mechanics designed specifically for this crossover
The sidekick danglers have also released in a few products
While its Azure Pulse ability can be helpful in certain situations and its Max Burst move has the potential to deal significant damage, they are not sufficient to make Rayquaza a top choice in the current format, even as a Rapid Strike Pokemon, which typically provides benefits to the card
Again, that's a strong bit of flexibility
A Ninja or Rogue that enters the battlefield after it resolves will not have menace, and a creature that gained menace this way but then stops being a Ninja or Rogue due to another effect will not lose menace
cards, and many more childhood relics, between various moves (though Im still hoping they live in a moving box somewhere in my parents garage)