Primal Reversion allows Kyogre or Groudon to transform and regain their Primal Form. That said, the process is similar to Mega Evolution since the two of them need to carry a special item for it to activate. The main difference however, is that unlike Mega Evolution that is triggered manually by the trainer, Primal Reversion takes place immediately as soon as the Pokemon is sent out to battle. Also, unlike Mega Evolutions, you are not limited in having one Pokemon in Primal form in a battle. You can have two of them at the same time.
Both of them will be carrying their own Primal stones after you capture them in their respective versions of the game. The general location of Kyogre and Groudon's Primal Reversion stones will be listed here; the exact methods on how to acquire them will be updated later.
Kyogre
Groudon
Reference: Serebii.net
You can use the red orb for groudon and blue for kyogre
Ihow do u catch groundon?
Where do I find them
MEGA SCEPTILE IS THE BEST STARTER!!!!!!!!!!!!!! PART DRAGON AND LEARNS DUAL CHOP AT LVL36 (when grovyle evolves into sceptile)
Were can i get amega for groudon i cant u understand anything i just need the new groudon shape !!
Hi
i cant wait to get this game i am going to capture the legends trade over to the other game and delete the original profile to get them twice