The legendary
story trail.
Keep these encounters on your route. A story appearance does not always mean a Pokémon can be caught.
The four Regis below appear in scripted visions or an opponent’s party. These events offer no catch opportunity. No verified catch location is listed for them in this v3.2 story route.
Registeel
Open the stone-counting lock with 4519. Ezekiel takes Registeel during the story.
Story event · not a catchRegirock, Regice & Registeel
Activate the three statues in order. Each vision lets you control a Regi against Regigigas; completing them removes the barriers.
Scripted visions · not catchesRegigigas & the Regi trio
Recover all three Idol Pieces and return with Herschel. Morgana uses all four Regis in the final encounter.
Opponent-owned · not catches
Sources: Ferre Ruins, Ignis Catacombs, Chamber of Gaia. This guide starts at Part 9; earlier Regirock and Regice story appearances precede its scope.