Varis then revealed that the Knights had never been able to obtain Ai's memories, so he still had them and had been lying to Playmaker, and he revealed that Ai had been created based on Playmaker during the Hanoi Project and that its purpose had been to create the Ignis, who had created their own world, the Cyberse
This effect can only be activated once per turn and Ryzeal Cross has the overall restriction of not being able to summon an Xyz monster with the same name as one you already control
Tide Drifter: a good low cast wall that can protect your other creatures from Lightning Bolt
You can get permanents back to the battlefield (and that includes fetch lands), creatures that ETB and draw a card, auras, and removal spells like Oblivion Ring
Though we dont know the specific cards for either deck yet, we do know each is being fronted by a huge name in Magics lore