CLOUD SEA OF ALREST
Source series: Xenoblade
Appears in: Ultimate
Home characters: Pyra/Mythra, Shulk (technically)
Hazards: Azurda's moving head
All Xenoblade music
--All of Azurda's head moves are preceded by visual cues.
--Azurda comments on the match, with dialogue cues for the beginning of the fight, KOs, self-destructs, the last life, & passing titans in the background, with special lines for Pyra & Mythra.
--Cannot be summoned: Moon, Metroid, Ashley, Snagret, Devil, Vince, Dillon, Squid Sisters, Alolan Vulpix, Alolan Exeggutor, Fennekin, Pyukumuku, & Marshadow.
Fun, if unremarkable, stage.
This is literally the only stage left at the moment. I'll have to wait for the next DLC character to continue this particular sub-series.
And remember, "I'm-a Luigi, number one!"