PhaYua = Abyssalordshipping
From Abyss + lord + shipping!
Abyss(al)
One of Dark Meister`s phrases was, "The truth lies within the abyss (深淵 'shin'en')." On the other side, Phaser is using Abysslayer deck and the summon chants mention abyss (深淵 'shin'en').
Lord
Phaser is a descendant of Space Dragon, the ruler of Space, and Yuamu is Dark Meister, the ruler of Dark Matter Space. Also, Poseidra, which first made its debut on Phaser v.s. Yuamu episode ia a Abyssal Dragon Lord 深淵竜神 while Yuamu said the phrase from above was from Dark Matter of Phantoms booster pack CM, and the monster Yuamu summoned on the CM was Dark Matter Emperor Dragon.
I was about to use Abysshipping or Abyssovereignshipping, but I realize that if we go through other series, other characters like Kamishiro Ryouga can also be connected with "abyss" (ex.: Rage of The Abyss booster pack) monsters and Abyssovereign just too long.
I just make ship names so I can use them to tag my posts, so please do not misunderstand that the ship names I use are official or something. In other words, I do not accept any opinions saying that the ship names do not fit the ships or anything since they are all for personal use!