theSLAYER

In Pokemon Omega Ruby & Alpha Sapphire, after the player defeats the Elite Four for the first time, the player is able to complete the post-game quest: Delta Episode.
During the final act of the arc, the player rides Mega Rayquaza into space, with the aim to destroy a meteorite that is hurdling down towards Earth, threatening to decimate the Hoenn region.
With an unexpected twist, Deoxys emerges from the meteor, and will challenge the player to a battle, whilst being at the edge of space.
If the player failed to catch Deoxys, the player gets another chance at the summit of the Sky Pillar, after clearing the Hall of Fame again.
Regardless which encounter resulted in Deoxys capture, it's summary will indicate that it was caught atop Sky Pillar.
This marks the first time a Mythical Pokemon could be encountered in the core series games, without any special event requirements (ignoring glitching/hacks).
     Species   Deoxys   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   In-Game Encounter   Location   Sky Pillar   Dates   (Various)   PID   Cannot Be Shiny   Games   ORAS                                                                Lv. 80    Nature   Random   Ability   Pressure   Item   None    Moves   (ITALIC means Relearnable)   Cosmic Power   Recover   Psycho Boost   Hyper Beam
  Format Ver.1.0.6-2, Post Updated Date:20180430_1636

Related to checking the seed of the file etc.

Read more here:
 

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
Rattata and Pidgey was added to the shiny pool permanently during the Pokémon Day (2019) event.
The event was slated to be between: Feb. 26, 2019, at 1:00 p.m. PST to Feb. 28, 2019, at 1:00 p.m. PST (GMT −8)
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.

Rattata and Pidgey was added to the shiny pool permanently during the Pokémon Day (2019) event.
The event was slated to be between: Feb. 26, 2019, at 1:00 p.m. PST to Feb. 28, 2019, at 1:00 p.m. PST (GMT −8)
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
Cleffa and Smoochum was added to the shiny pool permanently during the Pokémon GO Valentine’s Day Celebration (2019) event.
Wild Jynx, Clefairy and Clefable are not able to spawn shiny in Pokémon Go, meaning the only way to obtain a shiny version of them is to evolve the shiny pre-evolutions.
The event was slated to be between: Feb. 13, 2019, at 1:00 p.m. PST (GMT -8) to Feb. 21, 2019, at 1:00 p.m. PST (GMT -8)
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
Cleffa and Smoochum was added to the shiny pool permanently during the Pokémon GO Valentine’s Day Celebration (2019) event.
Wild Jynx, Clefairy and Clefable are not able to spawn shiny in Pokémon Go, meaning the only way to obtain a shiny version of them is to evolve the shiny pre-evolutions.
The event was slated to be between: Feb. 13, 2019, at 1:00 p.m. PST (GMT -8) to Feb. 21, 2019, at 1:00 p.m. PST (GMT -8)
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
Gastly was added to the shiny pool after the Gengar Special Raid Day on Nov 3rd, 2018, where Shiny Gengar could be encountered.
A confirmation from Niantic Support was posted the following day.

The Original Trainer for Pokémon Go was changed for privacy purposes.
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
Igglybuff was added to the shiny pool permanently during the Pokémon GO Eggstravaganza (2019) event.
Wild Jigglypuff and Wigglytuff are not able to spawn shiny in Pokémon Go, meaning the only way to obtain a shiny version of them is to evolve the shiny pre-evolutions.
The event was slated to be between: Apr. 16, 2019, at 1:00 p.m. PDT to Apr. 23, 2019, at 1:00 p.m. PDT (GMT −7)
This page holds a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.

Mankey & Machop was added to the shiny pool permanently during the Battle Showdown (2019) event, which was slated to be between:
Mar. 5, 2019, at 1:00 p.m. PST (GMT −8) to Mar. 12, 2019, at 1:00 p.m. PDT (GMT −7)
This page holds a PB7 format (already captured Pokémon) and a GP1 format (to be inserted into Go Park using PKHeX)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.

Mankey & Machop was added to the shiny pool permanently during the Battle Showdown (2019) event, which was slated to be between:
Mar. 5, 2019, at 1:00 p.m. PST (GMT −8) to Mar. 12, 2019, at 1:00 p.m. PDT (GMT −7)
This page holds a PB7 format (already captured Pokémon) and a GP1 format (to be inserted into Go Park using PKHeX)

Movie 2011 Crown Entei (CGV)
All three shiny Johto beasts were distributed at movie theaters during screenings of the 13th Pokémon Movie. When sent to a Black or White game via the Relocator, any of the three beasts can activate an event to meet, battle and catch Zoroark in Lostlorn Forest.
   Species   Entei   Nickname   (default, in )   OT   크라운시티   TID   12160   Distribution   Local Wireless   Location   Pokémon Event   Dates   Dec 16, '10 to Jan 09, '11   PID   Shiny PID   Games   DPPt HGSS                                                                Lv. 30    Nature   Adamant   Ability   Pressure (1)   Item   None    Moves       Flare Blitz   Howl   Extreme Speed   Crush Claw

Classic Format Ver.1.0.7-0, Post Updated Date:20190416_1812

Movie 2011 Crown Raikou (CGV)
All three shiny Johto beasts were distributed at movie theaters during screenings of the 13th Pokémon Movie. When sent to a Black or White game via the Relocator, any of the three beasts can activate an event to meet, battle and catch Zoroark in Lostlorn Forest.
   Species   Raikou   Nickname   (default, in )   OT   크라운시티   TID   12160   Distribution   Local Wireless   Location   Pokémon Event   Dates   Dec 16, '10 to Jan 09, '11   PID   Shiny PID   Games   DPPt HGSS                                                                Lv. 30    Nature   Rash   Ability   Pressure (1)   Item   Micle Berry    Moves       Zap Cannon   Aura Sphere   Extreme Speed   Weather Ball

Classic Format Ver.1.0.7-0, Post Updated Date:20190416_1808

These save files can be used to continue your game, or load up PB7 files to modify on PKHeX.
I've also modified the base saves from yuzu. I've also included a pack that has added in event flags from another save, to make it post E4 & Champion (not certain if these work tho).

New update!
For now, I've added variant language options for Let's Go Pikachu & Eevee saves,
all in the .rar named LG [version] more variety (modded)


Use PKHeX to change the Trainer Name, Rival Name, Trainer ID and Secret ID.
If you want unique manipulations of the look of your character (and you know hex editing), view this page.


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Source for original files: https://github.com/yuzu-emu/yuzu-games-wiki

This gift was given to players that have an active Pokémon Bank subscription during the distribution period.
This is the first time this gift's hidden ability can be obtained legitimately.
     Species   Oranguru   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   Pokémon Bank   Location   Pokémon Bank   Dates   Mar 28 to Oct 31, 2019   PID   Cannot Be Shiny   Games   All Regions 3DS: SM USUM                                                                Lv. 50    Nature   Random   Ability   Symbiosis (HA)   Item   None   Bundled Item   None   Card Per Save   Only One Allowed    Moves   (ITALIC means Relearnable)   Instruct   Foul Play   Trick Room   Ally Switch   WC ID 0: 「포켓몬 뱅크」's receiving text 0x37 Please pick up your gift from the deliveryman in any Pokémon Center.

Classic Format Ver.1.0.7-0, Post Updated Date:20190401_2211

This gift was given to players that have an active Pokémon Bank subscription during the distribution period.
This is the first time this gift's hidden ability can be obtained legitimately.
     Species   Passimian   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   Pokémon Bank   Location   Pokémon Bank   Dates   Mar 28 to Oct 31, 2019   PID   Cannot Be Shiny   Games   All Regions 3DS: SM USUM                                                                Lv. 50    Nature   Random   Ability   Defiant (HA)   Item   None   Bundled Item   None   Card Per Save   Only One Allowed    Moves   (ITALIC means Relearnable)   Close Combat   U-turn   Knock Off   Gunk Shot   WC ID 0: 「포켓몬 뱅크」's receiving text 0x37 Please pick up your gift from the deliveryman in any Pokémon Center.

Classic Format Ver.1.0.7-0, Post Updated Date:20190401_2212

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This entry was transferred from from Pokémon Go to Let's Go Pikachu and Lets Go Eevee.
The Original Trainer for Pokémon Go was changed for privacy purposes.
This page a GP1 format (to be inserted into Go Park using PKHeX, or dragged to the left side of PKHeX and converted in .PB7)

This gift was given to players that have an active Pokémon Bank subscription during the distribution period.
This is the first time this gift's hidden ability can be obtained legitimately.
     Species   Passimian   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   Pokémon Bank   Location   Pokémon Bank   Dates   Mar 28 to Oct 31, 2019   PID   Cannot Be Shiny   Games   All Regions 3DS: SM USUM                                                                Lv. 50    Nature   Random   Ability   Defiant (HA)   Item   None   Bundled Item   None   Card Per Save   Only One Allowed    Moves   (ITALIC means Relearnable)   Close Combat   U-turn   Knock Off   Gunk Shot   WC ID 0: 「寶可夢虛擬銀行」's receiving text 0x37 Please pick up your gift from the deliveryman in any Pokémon Center.

Classic Format Ver.1.0.7-0, Post Updated Date:20190401_2222

This gift was given to players that have an active Pokémon Bank subscription during the distribution period.
This is the first time this gift's hidden ability can be obtained legitimately.
     Species   Oranguru   Nickname   (default, save lang)   OT   (recipient)   TID   (recipient)   Distribution   Pokémon Bank   Location   Pokémon Bank   Dates   Mar 28 to Oct 31, 2019   PID   Cannot Be Shiny   Games   All Regions 3DS: SM USUM                                                                Lv. 50    Nature   Random   Ability   Symbiosis (HA)   Item   None   Bundled Item   None   Card Per Save   Only One Allowed    Moves   (ITALIC means Relearnable)   Instruct   Foul Play   Trick Room   Ally Switch   WC ID 0: 「寶可夢虛擬銀行」's receiving text 0x37 Please pick up your gift from the deliveryman in any Pokémon Center.

Classic Format Ver.1.0.7-0, Post Updated Date:20190401_2222