1. Crimson Dragon, The Signer Dragons & Earthbound Immortals are the highest Divine Hierarchy(9 & 10), below them is the Gentle Darkness of creation, Light of Destruction, Neo-space, Chaos & Order/Shining/Zexal(7), then Divine Neos & Yubel(5), then comes the god cards beneath them.
2. Black Rose Dragon created the laws of reality and Ancient Fairy created life.
3. The positive & negative energy of the SD & EI & the Gentle Darkness of creation, Light of Destruction, Neo-space, Chaos & Order/Shining/Zexal predate everything else.
4. The 12 Dimensions in GX are: Earthly Realm (created by The Numeron Dragon), Shadow-realm (created by Zorc), Nightshroud's realm, DM spirit realm, Astral World, Barian World & others, but the Ocean of Worlds is the space between Astral & Earth, not a separate dimension. Netherworld & Heaven can be a part of the 12 or be outside them.
5. Nightshroud is Holactie's equal & the father of Zorc & the grandfather of Darknite/Nitemare & Manawyddan fab Llyr.
6. GX is 10 years after DM ended, 5D's is 20 years after GX, Zexal starts about 60 years after 5D's epilogue, Arc-V about 80 years after Zexal, Vrains about 30 years after that & Sevens about 70 years after that, it adds up to the roughly 248 years (epilogue is 8 years after the end of 5D's), so the approximately 200 number Z-one gave still stands! That way Yuma & the Zexal cast die of old age before Zarc loses it & explains why Yusei didn't help with the Barians. Yusaku dealt with everything faster than Yuya could be notified so that fits.
7. When they go to the DM Spirit World, they never encounter Dark Magician, or any counterparts that're implied to be him, only Dark Sage. Same for every group of cards implied to be 1 person. One Utopia, One of each Signer Dragon, One Neos, One Kuriboh, etc.
8. Duel Spirits can use any summoning mechanic regardless if it has been introduced yet, except Pendulum, because Zarc created it when he caused his catastrophe.
9. Duel Spirits can also use Rose Duelist Rules, Bandai Rules, Duelist Kingdom Rules, or any combination of Duel Monster Rules they want.
10. Duel Spirits & other characters will play Dungeon Dice Monsters & Capsule Monsters.
11. Mahad/Torunka X Cosmo Queen.
