A Pony Lora that not only includes Rayquaza, but Mega Rayquaza as well! (to be added as its own version a bit later, so stay tuned).

Regular Rayquaza:

The larger dataset of the 2, this one should be pretty versatile, covering Feral and anthro forms, and even nagas/lamias if one is so inclined. Special activation tags for the normal version are "RayDX", "Rayquaza", and "Shiny Rayquaza" for the black version.

Mega Rayquaza:

Pretty self explanatory. While the dataset is noticably smaller, and doesn't contain as much anthro content as I would like, its fairly accurate and can generate some good stuff. just note that the energy tendril things have a tendancy to get lost within the image. The tags for this one are, like the normal form, "MegaRayDX", "Mega Rayquaza", and "Shiny Mega Rayquaza."
I've also tried to include a special tag, "dragon ascent" for Mega Ray's signature move, but unfortunately there wasn't a lot of material to work with for that. regardless, I'd love to see people try and make images doing that ^^