Spoilers The Hitchiker's Guide to the Ultra Wormholes

[PlatinumPokenut]

So! Bulbapedia still hasn't lifted the edit ban on itself, and thus, no pages can be made. So, while that's down, I thought I'd explain the Ultra Wormholes here:

The Ultra Wormholes are in the Altar of the Sunne/Moone. They open up and are available to you after beating Ultra Necrozma. There are 2 kinds of other objects in the wormhole: energy balls and electric orbs. The orange energy balls let you go for longer, while the blue electric orbs slow you down and make you lose energy. The longer you run, the more energy you have to collect, otherwise, Solgaleo or Lunala will get tired, peter out, and the nearest Ultra Wormhole's gravity will pull you in. There are 5 colors of wormhole and each corresponds to a different set of Pokemon and Ultra Spaces. The normal Pokemon and UBs have an unusually high Shininess rate, at a whopping 7% when the light-year benefits are maxed out at 4500 LY. The shininess is determined upon entering the wormhole. As such, one can soft reset for natures and IVs. For Legendary Pokemon, the only way to get them shiny is by soft resetting them. There are 4 kinds of (conjecturally named) Ultra Wormholes. They are, in order of rarity from lowest to highest: Normal, Ringed, Double Ring, and Aura Flower. The rarer the wormhole, the greater the chance of encountering a Legendary. Aura Flower wormholes are guaranteed to encounter a legendary.

Blue(Ultra Falls, these are names by me):

• Quagsire
• Lombre
• Floatzel
• Stunfisk
• Barbaracle
• Suicune(Entei and Raikou in party)
• Lugia(UM)
• Latias(UM)
• Latios(US)
• Kyogre(UM)
• Lake Trio
• Kyurem(Reshiram and Zekrom in party)

Green (Ultra Ridge):

• Nuzleaf
• Grumpig
• Drapion
• Audino
• Heliolisk
• Mewtwo
• Raikou(US)
• Dialga(US)
• Entei(UM)
  
• Swords of Justice
• Reshiram(US)
• Zekrom(UM)
• Xerneas(US)

Yellow(Ultra Underground):

• Magcargo
• Medicham
• Hippowdon
• Crustle
• Abomasnow
• Legendary Golems
• Groudon(US)
• Palkia(UM)
• Heatran(US)
• Regigigas(UM)

Red(Ultra Cliffside):

• Swellow
• Altaria
• YAnmega
• Sigilyph
• Swanna
• Legendary Birds
• Ho-oh(US)
• Rayquaza(requires the Weather Duo)
• Kami Trio(Tornadus in Ultra Sun, Thundurus in Ultra Moon anf Landorus requires both)
• Yveltal(UM)

White:

• Nihilego(Ultra Deep Sea)
• Buzzwole(Ultra Jungle,US-only)
• Pheromosa(Ultra Desert,UM-only)
• Xurkitree(Ultra Plant)
• Kartana(Ultra Forest,US-only)
• Celesteela(Ultra Crater)

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[Cookies and Creme]

In my research I found that Double Rings have the highest chance of shiny than any other ring. No matter what distance Double Rings will have a pretty good chance of shiny, I've encountered a shiny Crustle at only 2500 light years.
This may be my luck, though, but I doubt it because my luck is nonexistent

 

[Alola]

In my research I found that Double Rings have the highest chance of shiny than any other ring. No matter what distance Double Rings will have a pretty good chance of shiny, I've encountered a shiny Crustle at only 2500 light years.
This may be my luck, though, but I doubt it because my luck is nonexistent

I'll try out your theory, good Sir.

 

[Warrior of Fire]

Does anyone know if the wormhole legendaries aren't lost forever if you leave the Wilds without battling them?

 

[SpikOriundo]

Does anyone know if the wormhole legendaries aren't lost forever if you leave the Wilds without battling them?

They aren't. They just stop appearing after you catch said legendary, so you don't have to worry.