Before getting into the rules let me just say this format is not meant to go "try hard" and build the most optimal competitive deck to face off against your opponent. The idea of this format is to keep it casual and run those "bad" Knights of Atlantis, Chazz (Ojama/Armed Dragon/VWXYZ), God Cards and many other casual decks. Basically approach this format as if you're playing on the playground and not at a local game shop for a tournament.
This format was also designed to be used with the Duel Disk toys licensed by Konami. YOU DO NOT NEED A DUEL DISK TO PLAY THIS FORMAT.
Due to this format being made with the Duel Disks in mind there are rules in line limiting certain cards that can't be used with a Duel Disk.
1-Other than the following rules, all other official TCG rules apply.
2-Due to this being made for a Duel Disk XYZ, PENDULUMS, and LINK MONSTERS ARE BANNED!
3- All cards are limited to 1 copy per deck EXCEPT for cards on this list, you can play 3 of anything on this list: https://tinyurl.com/AnimeFormatExceptions
4) Other than Xyz, Pendulum and Links no other cards are banned, but to balance Gameplay there is a Tier List
You can only have
3 Cards on the A Tier List
5 Cards on the B Tier List
10 Cards on the C Tier List
In your deck.
https://tinyurl.com/FormatTierList
5)You can Normal Summon in face up defense like the Anime.
6) You can have up to 20 cards in the Extra Deck.
7) Cards that have a (this card is always treated as "card name") can be ignored.
Example Harpie Lady 1, 2. And 3 are always treated as the original Harpie Lady.
In normal ocg/tcg you would have to choose the ratios from amongst them to play.
But here you can run the 3 original and then 1 of each other effect harpie.
Another instance of this is "Umi" and card like "A legendary ocean"
Google Docs
You can find the full community here: https://discord.com/invite/gGmy52ZEny