The Pokémon Company has announce that they will be giving out two serial codes during the 2023 North America International Championships Stream on Twitch. One is for a Shiny Arcanine that can be unlocked in Pokémon Scarlet and Violet and the other code is for an Iono Supporter card (PAL 254/193) for Pokémon TCG Live. The card code is active until July 10th, 2023 and is limited to 100,000 uses.

Arcanine Code: PAULEU1CW1N
Iono: NAIC23Whosawhatsit

Get a Pokémon during the 2023 North America International Championships Stream

Watch the 2023 North America International Championships (NAIC) on Twitch.tv/Pokemon for a password that will let you receive a special Pokémon in your Pokémon Scarlet or Pokémon Violet game—then keep watching for another password that will let you receive a cool Pokémon card in Pokémon TCG Live.

Pokémon Scarlet and Pokémon Violet: Paul Chua's Shiny Arcanine

Paul Chua claimed victory at EUIC, and a Shiny Arcanine was a core member of Paul's winning team! Wait for the password to appear during the 2023 NAIC broadcast, then go to the Mystery Gift feature in your game and enter the password to receive this Pokémon with the same moves and stats as Paul's—you can even add it to your next competitive team! This password can be used only once per save data in Pokémon Scarlet or Pokémon Violet. Players will need to have progressed to a certain point in the game before being able to receive this Pokémon. The code for this Shiny Arcanine will be redeemable until July 3, 2023, at 4:59 p.m. PDT.

Shiny Arcanine

Poké Ball: Cherish Ball
Gender: Female
Level: 50
Original Trainer: Paul
Nature: Adamant
Ability: Intimidate
Tera Type: Grass
Held Item: Safety Goggles
Moves: Flare Blitz, Will-o-Wisp, Protect, Extreme Speed

Pokémon TCG Live: Iono

The Gym Leader of the Paldea region's Levincia Gym makes her stunning debut in the Scarlet & Violet—Paldea Evolved expansion. Add a virtual version to your Pokémon TCG collection in Pokémon TCG Live.

Redeemable until 11:00 p.m. PDT on July 10, 2023. Limit one card per account.

Source: https://www.pokemon.com/us/play-pokemon/internationals/2023/north-america/pokemon-distributions/