Maybe this is a better place for these questions.
Does the bolded mean that only ORAS rayquaza can mega evolve? Let me know.
Besides Red Orb and Latiosite and Sceptilite, was there anything else I missed by only buying Alpha Sapphire besides the ability to reset the legends only found in OR?
Does this mean no Shiny mega Rayquaza? :(
Well, I asked this on Serebii and this was the response:
SapphSabre777: It's confirmed that any Rayquaza can be taught Dragon Ascent, not just the one you're required to catch in Delta Epsiode. Zinnia's grandmother, who hangs out in Meteor Falls post-Delta, will teach any Rayquaza you bring to her Dragon Ascent, allowing it to Mega Evolve.
It seems like we have some parties saying yes and some saying no. Fantastic. XD