I know that in the episode Groudon used Precipice Blade, Hyper Beam and I also know that Kyogre used Origin Pulse, Sheer cold (I think) and Rayquaza used Dragon Ascent, Hyper Beam and Draco Meteor, but I want to know what this move is at 00:12 in this video because I have no clue. Answer me please ;-;
Answer me please ;-;
We only know how the move looks like, and nothing else. I'm sure it's Solar Beam, no other move Groudon learns looks like that.
It was Solar Beam. If you scroll down to the anime part of the page, you will see Primal Groudon firing a green energy beam.