SkyLink98

This is a save file with a recreation of 426 Legal ROCKS METANG.
This event was distribuited to players during the Rocks America Tour in 2005. 
Pokémon Characteristics: 
TID 02005, SID 00000, OT Male ROCKS, National Ribbon
Moves: Take Down, Confusion, Metal Claw, Refresh
Origin Game Ruby, Fateful Encounter as Met Location, Caught in Pokéball, Met at Level 30
ENG, Lvl 30, Clear Body as Ability
PID and IVs matching the 10 ANNIV Distribution Method.

This save file is based on @GalosAlan10 and @Sabresite's Celebi Save File:

ROCKS Metang share the same generation algorithm as 10 ANIV and Aura Mew Events: 
 

This gift was given to players who linked their Pokémon Scarlet or Pokémon Violet Save File with Pokémon Home by depositing one or more Pokémon.

This gift was given to players who linked their Pokémon Scarlet or Pokémon Violet Save File with Pokémon Home by depositing one or more Pokémon.

This gift was given to players who linked their Pokémon Scarlet or Pokémon Violet Save File with Pokémon Home by depositing one or more Pokémon.

This event was announced during the Crown Tundra premiere. Starting from September 29th 2020, this Pikachu can be redeemed with the code P1KACHUGET. This event will be followed by the other Hat Pikachus.

   Wonder Card ID #1627: Pikachu (Original Cap) Gift  Species   Pikachu (Original Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Sep 29 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2111

This event is available starting from September 29th 2020 together with the Original Cap Pikachu. 
This event has been announced through the official Pokémon website.
The redemption code is 1CH00SEY0U.

   Wonder Card ID #1633: Pikachu (Partner Cap) Gift  Species   Pikachu (Partner Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Sep 29 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2126

This Charizard and a special Mewtwo for Pokémon Let's Go are redeemable through a local distribution in occasion of the screening of  the Pokémon Movie 22: Mewtwo Strikes Back Evolution in Korean cinemas.

   Wonder Card ID #1007: 지우's Charizard  Species   Charizard   TID   200930   Distribution   Serial Code   Location   a Pokémon movie   Dates   Sep 30 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Adamant   Ability   Blaze (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 50       Moves   (ITALIC means Relearnable)   Flamethrower   Dragon Tail   Slash   Seismic Toss

Wishing Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      리자몽    지우    KOR  ENG      리자몽    지우    KOR  FRE      리자몽    지우    KOR  ITA      리자몽    지우    KOR  GER      리자몽    지우    KOR  SPA      리자몽    지우    KOR  KOR      리자몽    지우    KOR  CHS      리자몽    지우    KOR  CHT      리자몽    지우    KOR Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2112

This gift is distributed to players via a serial code, given in participating stores in Europe, from 25 September to 25 October 2020.
The codes are redeemable until January 31st, 2021 (Thanks @AlamosIT for the report).
Using the Dynamax Crystal would allow the Pokémon to appear at the Watchtower Lair's Den as a max raid.
The Pokémon can be Shiny with standard odds. Attached there are the wonder card, the standard Pokémon and the Shiny variation.
To be able to use the items associated with the event, including injecting items into the save and getting it to work,
the player's Switch must be connected to the internet, with the Mystery Gift>Get Wild Area News option used during the event period.
Alternatively the player must have connected to the internet and redeemed a Mystery Gift during the event period.
This gift can be redeemed on either Sword or Shield.
This events also has a certain fixed IVs.
As of time of writing, end date for the serial code redemption is presently unknown.
In order for the item (whether redeemed or hacked in) to function, players would need to have at least Wild Area Event #24 downloaded into the save.
(When collecting a Mystery Gift, a copy of the Wild Area News would be downloaded to the save) As of LGPE, wonder cards are no longer stored in saves. As such, players will not be able to inject this event into their save using PKHeX.
  Wonder Card ID #0506: Dynamax Crystal Gift   Here's what you got:    ★Sgr6859 x1                                  Serial Code | SWSH | Only One Allowed | Sep 25, '20 to Jan 01, '21 Original news with more details:
 

This event was announced during the Crown Tundra premiere in September 29th, 2020. Starting from October 2nd, this Pikachu can be redeemed with the code P1KAADVANCE. This is the third Hat Pikachu available through Mystery Gift on Sword and Shield.

   Wonder Card ID #1628: Pikachu (Hoenn Cap) Gift  Species   Pikachu (Hoenn Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Oct 02 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2109

This event was announced during the Crown Tundra premiere in September 29th, 2020. Starting from October 9th, this Pikachu can be redeemed with the code V0LTTACKLEP1KA. This is the fourth Hat Pikachu available through Mystery Gift on Sword and Shield.

   Wonder Card ID #1629: Pikachu (Sinnoh Cap) Gift  Species   Pikachu (Sinnoh Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Oct 09 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2110

This event was announced during the Crown Tundra premiere in September 29th, 2020. Starting from October 16th, this Pikachu can be redeemed with the code P1KABESTW1SH. This is the fifth Hat Pikachu available through Mystery Gift on Sword and Shield.

   Wonder Card ID #1630: Pikachu (Unova Cap) Gift  Species   Pikachu (Unova Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Oct 16 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2113

This event was announced during the Crown Tundra premiere in September 29th, 2020. Starting from October 18th, this Pikachu can be redeemed with the code KAL0SP1KA. This is the sixth Hat Pikachu available through Mystery Gift on Sword and Shield.

   Wonder Card ID #1631: Pikachu (Kalos Cap) Gift  Species   Pikachu (Kalos Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Oct 18 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2114

This event was announced during the Crown Tundra premiere in September 29th, 2020. Starting from October 23th, this Pikachu can be redeemed with the code ULTRAP1KA. This is the seventh Hat Pikachu available through Mystery Gift on Sword and Shield.

   Wonder Card ID #1632: Pikachu (Alola Cap) Gift  Species   Pikachu (Alola Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Oct 23 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   None    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2117

This event was announced during the Crown Tundra premiere in September 29th, 2020. Starting from October 30th, this Pikachu can be redeemed with the code K1NP1KA1855. This is the last Hat Pikachu available through Mystery Gift on Sword and Shield.

   Wonder Card ID #1634: Pikachu (World Cap) Gift  Species   Pikachu (World Cap)   TID   201023   Distribution   Serial Code   Location   a Pokémon TV program   Dates   Oct 30 to Nov 30, 2020   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Static (1)   Item   Light Ball    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 25       Moves   (ITALIC means Relearnable)   Thunderbolt   Quick Attack   Iron Tail   Electroweb   Extra Relearnable:   Volt Tackle

Classic Ribbon  Lang
 Slot    Mon's
 Lang    Nickname    OT Name   OT's 
Lang   JPN      (default name)    サトシ    JPN  ENG      (default name)    Ash    ENG  FRE      (default name)    Sacha    FRE  ITA      (default name)    Ash    ITA  GER      (default name)    Ash    GER  SPA      (default name)    Ash    SPA  KOR      (default name)    지우    KOR  CHS      (default name)    小智    CHS  CHT      (default name)    小智    CHT Only One Redemption Allowed  Format Ver.2.0.0-11b, Post Updated Date:20201101_2118

This Pokémon was distributed via serial code to players of Pokémon Sword and Shield at Pokémon Centers in Japan from November 1, 2020. The Pokémon was given during the user's Birthday month only if one brings valid identity document and a Nintendo Switch console with a copy of Sword or Shield. The present can also be redeemed by making an online request in the official Pokémon Center site.
Starting from the 6th November, 2020 a new version of the card has been uploaded by Nintendo. The change made only regard the Set Nickname flag.

   Wonder Card ID #0122: Happy Birthday!  Species   Milcery   TID   201101   Distribution   Serial Code   Location   a Pokémon Center   Dates   Nov 01, '20 to Jan 31, '22   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Sweet Veil (1)   Item   Ribbon Sweet    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 5       Moves   (ITALIC means Relearnable)   Celebrate   Last Resort   Entrainment   Attract

Birthday Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  マホミル  ポケセン  JPN  ENG  マホミル  ポケセン  JPN  FRE  マホミル  ポケセン  JPN  ITA  マホミル  ポケセン  JPN  GER  マホミル  ポケセン  JPN  SPA  マホミル  ポケセン  JPN  KOR  マホミル  ポケセン  JPN  CHS  マホミル  ポケセン  JPN  CHT  マホミル  ポケセン  JPN Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201106_0003
Previous wondercard info:

This Pokémon was distributed via serial code to players of Pokémon Sword and Shield at Pokémon Centers in Japan from November 1, 2020. The Pokémon was given during the user's Birthday month only if one brings a valid identity document and a Nintendo Switch console with a copy of Sword or Shield. The present can also be redeemed by making an online request in the official Pokémon Center site.
Starting from the 6th November, 2020 a new version of the card has been uploaded by Nintendo. The change made only regard the Set Nickname flag.

   Wonder Card ID #0122: Happy Birthday!  Species   Milcery   TID   201101   Distribution   Serial Code   Location   a Pokémon Center   Dates   Nov 01, '20 to Jan 31, '22   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Sweet Veil (1)   Item   Star Sweet    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 5       Moves   (ITALIC means Relearnable)   Celebrate   Last Resort   Entrainment   Attract

Birthday Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  マホミル  ポケセン  JPN  ENG  マホミル  ポケセン  JPN  FRE  マホミル  ポケセン  JPN  ITA  マホミル  ポケセン  JPN  GER  マホミル  ポケセン  JPN  SPA  マホミル  ポケセン  JPN  KOR  マホミル  ポケセン  JPN  CHS  マホミル  ポケセン  JPN  CHT  マホミル  ポケセン  JPN Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201106_0011
Previous wondercard info:

This Pokémon was distributed via serial code to players of Pokémon Sword and Shield at Pokémon Centers in Singapore from November 6, 2020. The Pokémon wa given during the user's Birthday month only if one brings valid identity document and a Nintendo Switch console with a copy of Sword or Shield.

   Wonder Card ID #0125: Happy Birthday!  Species   Milcery   TID   201101   Distribution   Serial Code   Location   a Pokémon Center   Dates   Nov 06, '20 to Jan 31, '22   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Sweet Veil (1)   Item   Ribbon Sweet    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 5       Moves   (ITALIC means Relearnable)   Celebrate   Last Resort   Entrainment   Attract

Birthday Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  Milcery  PCSG  ENG  ENG  Milcery  PCSG  ENG  FRE  Milcery  PCSG  ENG  ITA  Milcery  PCSG  ENG  GER  Milcery  PCSG  ENG  SPA  Milcery  PCSG  ENG  KOR  Milcery  PCSG  ENG  CHS  Milcery  PCSG  ENG  CHT  Milcery  PCSG  ENG Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201106_0032

This Pokémon was distributed via serial code to players of Pokémon Sword and Shield at Pokémon Centers in Singapore from November 6, 2020. The Pokémon was given during the user's Birthday month only if one brings valid identity document and a Nintendo Switch console with a copy of Sword or Shield.

   Wonder Card ID #0125: Happy Birthday!  Species   Milcery   TID   201101   Distribution   Serial Code   Location   a Pokémon Center   Dates   Nov 06, '20 to Jan 31, '22   PID   Cannot Be Shiny   Games   SWSH   Nature   Hardy   Ability   Sweet Veil (1)   Item   Star Sweet    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 5       Moves   (ITALIC means Relearnable)   Celebrate   Last Resort   Entrainment   Attract

Birthday Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  Milcery  PCSG  ENG  ENG  Milcery  PCSG  ENG  FRE  Milcery  PCSG  ENG  ITA  Milcery  PCSG  ENG  GER  Milcery  PCSG  ENG  SPA  Milcery  PCSG  ENG  KOR  Milcery  PCSG  ENG  CHS  Milcery  PCSG  ENG  CHT  Milcery  PCSG  ENG Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201106_0036

Starting from Nov 6 to Nov 10 2020, the official poke_times Twitter Account started an event challenge to commemorate the release of The Crown Tundra DLC. Only 10.000 winners will be able to redeem this event code. The details about this campaign can be found here: https://www.pokemon.co.jp/info/2020/11/201106_cm01.html
As of LGPE, wonder cards are no longer stored in saves. As such, players will not be able to inject this event into their save using PKHeX.
 Wonder Card ID #0136: Big Nuggets Gift   Here's what you got:    Big Nugget x50                                   Serial Code | SWSH | Only One Allowed | Nov 11 to Dec 31, 2020 Format Ver.2.0.0-12b, Post Updated Date:20201112_1559

This Zarude was originally released as Serial Code in various stores throughout Europe from November 13th to December 13th 2020. Although it has the same OT as the Japanese Release, other details such as TID, SID and Met Location changed. The codes are redeemable untill March 31, 2021.
In the United States and some other countries, the user had to sign up for the official Pokémon website newsletter by November 20. The codes would be sent starting from 11 December.

(TL;DR: it appears the server only allows single redemption presently).

   Wonder Card ID #0507: Mythical Pokémon Zarude Gift  Species   Zarude   TID   201113   Distribution   Serial Code   Location   a lovely place   Dates   13 Nov '20 to 31 Mar '21   PID   Cannot Be Shiny   Games   SWSH   Nature   Sassy   Ability   Leaf Guard (1)   Item   Leftovers    IVs   EVs HP RND,
3x
31 IVs   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 60       Moves   (ITALIC means Relearnable)   Close Combat   Power Whip   Swagger   Snarl

Wishing Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  (default name)  オコヤのもり  JPN  ENG  (default name)  Jungle  ENG  FRE  (default name)  Jungle  FRE  ITA  (default name)  Giungla  ITA  GER  (default name)  Dschungel  GER  SPA  (default name)  Selva  SPA  KOR  (default name)  정글  KOR  CHS  (default name)  丛林  CHS  CHT  (default name)  叢林  CHT Multiples Redemptions Allowed * 

This gift was distributed as part of the Pokémon Get Challenge campaign. The gift codes can be obtained from participating products in Japan.

   Wonder Card ID #0127: Mythical Pokémon Genesect Gift  Species   Genesect   TID   201120   Distribution   Serial Code   Location   a lovely place   Dates   20 Nov '20 to 30 Apr '21   PID   Cannot Be Shiny   Games   SWSH   Nature   Random   Ability   Download (1)   Item   None    IVs   EVs HP RND,
3x
31 IVs   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 60       Moves   (ITALIC means Relearnable)   Techno Blast   X-Scissor   Metal Claw   Fell Stinger

Classic Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  ゲノセクト  ゲッチャレ  JPN  ENG  ゲノセクト  ゲッチャレ  JPN  FRE  ゲノセクト  ゲッチャレ  JPN  ITA  ゲノセクト  ゲッチャレ  JPN  GER  ゲノセクト  ゲッチャレ  JPN  SPA  ゲノセクト  ゲッチャレ  JPN  KOR  ゲノセクト  ゲッチャレ  JPN  CHS  ゲノセクト  ゲッチャレ  JPN  CHT  ゲノセクト  ゲッチャレ  JPN Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201120_1000

This gift is distributed starting from November 6, 2020 as a purchase bonus for the Pokémon Sword + Expansion Pack or the Pokémon Shield + Expansion Pack in the retail format.
As of LGPE, wonder cards are no longer stored in saves. As such, players will not be able to inject this event into their save using PKHeX.
 Wonder Card ID #1626: Purchase Bonus   Here's what you got:    Poke Ball x100                                   Serial Code | SWSH | Only One Allowed | Starting from Nov 6, 2020 Format Ver.2.0.0-12b, Post Updated Date:20201112_1759

This gift was distributed as part of the Pokémon Get Challenge campaign. The gift codes can be obtained from participating products in Japan.

   Wonder Card ID #0128: Mythical Pokémon Volcanion Gift  Species   Volcanion   TID   201120   Distribution   Serial Code   Location   a lovely place   Dates   20 Nov '20 to 30 Apr '21   PID   Cannot Be Shiny   Games   SWSH   Nature   Random   Ability   Water Absorb (1)   Item   None    IVs   EVs HP RND,
3x
31 IVs   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 60       Moves   (ITALIC means Relearnable)   Steam Eruption   Flare Blitz   Incinerate   Haze

Classic Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  ボルケニオン  ゲッチャレ  JPN  ENG  ボルケニオン  ゲッチャレ  JPN  FRE  ボルケニオン  ゲッチャレ  JPN  ITA  ボルケニオン  ゲッチャレ  JPN  GER  ボルケニオン  ゲッチャレ  JPN  SPA  ボルケニオン  ゲッチャレ  JPN  KOR  ボルケニオン  ゲッチャレ  JPN  CHS  ボルケニオン  ゲッチャレ  JPN  CHT  ボルケニオン  ゲッチャレ  JPN Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201120_1008

This gift was distributed as part of the Pokémon Get Challenge campaign. The gift codes can be obtained from participating products in Japan.

   Wonder Card ID #0129: Mythical Pokémon Marshadow Gift  Species   Marshadow   TID   201120   Distribution   Serial Code   Location   a lovely place   Dates   20 Nov '20 to 30 Apr '21   PID   Cannot Be Shiny   Games   SWSH   Nature   Random   Ability   Technician (1)   Item   None    IVs   EVs HP RND,
3x
31 IVs   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 60       Moves   (ITALIC means Relearnable)   Spectral Thief   Drain Punch   Force Palm   Shadow Sneak

Classic Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  マーシャドー  ゲッチャレ  JPN  ENG  マーシャドー  ゲッチャレ  JPN  FRE  マーシャドー  ゲッチャレ  JPN  ITA  マーシャドー  ゲッチャレ  JPN  GER  マーシャドー  ゲッチャレ  JPN  SPA  マーシャドー  ゲッチャレ  JPN  KOR  マーシャドー  ゲッチャレ  JPN  CHS  マーシャドー  ゲッチャレ  JPN  CHT  マーシャドー  ゲッチャレ  JPN Only One Redemption Allowed  Format Ver.2.0.0-12b, Post Updated Date:20201120_1014

Starting from December 4 2020, by spending at least 1000 yen at Mister Donut, you can receive a serial code to redeem Chansey in Sword and Shield as well as some goodies.

   Wonder Card ID #0124: ミスド's Chansey  Species   Chansey   TID   201204   Distribution   Serial Code   Location   a lovely place   Dates   Dec 04, '20 to Feb 05, '21   PID   Cannot Be Shiny   Games   SWSH   Nature   Random   Ability   Natural Cure (1) or Serene Grace (2)   Item   Lucky Egg    IVs   EVs HP ALL
RND   ALL
0 ATK DEF S.ATK S.DEF SPE
  Lv. 7       Moves   (ITALIC means Relearnable)   Present   Sweet Kiss   Charm   Soft-Boiled

Classic Ribbon  Lang
 Slot  Mon's
 Lang  Nickname  OT Name OT's 
Lang   JPN  ラッキー  ミスド  JPN  ENG  ラッキー  ミスド  JPN  FRE  ラッキー  ミスド  JPN  ITA  ラッキー  ミスド  JPN  GER  ラッキー  ミスド  JPN  SPA  ラッキー  ミスド  JPN  KOR  ラッキー  ミスド  JPN  CHS  ラッキー  ミスド  JPN  CHT  ラッキー  ミスド  JPN Multiples Redemptions Allowed  Format Ver.2.0.0-13b, Post Updated Date:20201204_0948