>>718716982
Those versions justified Snorlax as the guardian of the forest but it clearly didn't work out with the theme of the pokemon being invocations of the weather trio, so they finalized on tyranitar, gyrados, and dragonite.

PMyth5.2 AUSU is the only one that aligns with the in game content of the plates, the sinjoh sigil, and the Legends Arceus cutscenes.

>>718717543
There are tons of leaked documents explaining that those 3 were themed around atlantis.