>>30558373>>30556483>>30556249Reminder that Ultra Beasts have a special sound effect in their cries that other than the known ones
Solgaleo and Lunala, only Necrozma also shares.
And also its Sun dex entry outright implying that it's a UB.
Lore-wise there's no reason to think it didn't originally appear out of wormholes those many years ago, but stay hidden using its light refractory then dig and sleep underground till the events of S/M inwhich new Wormholes appeared making it active.
