Welcome to Pokemon 1999's VS Half Deck League!
30 card decks. 3 prizes.
2 copies of a card max, instead of 4
https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_VS_(TCG)

You must be in the discord server to participate, and please have an identifiable name so TOs can easily match Limitless/Discord users, thank you!
https://discord.gg/BdhwYrWvcW