The No U Paradox
Tl;dr: Set theory's Ω with a hint of ignorance
Basically, it all starts with a basic uno reverse card. The premise of No U cards is pointless in itself. Counter the previous by assimilating it. This is basically Ω. Now, IGNORE the Ω rule by contributing to it via sheer irony but taking it for your own. This is known as a Mary Sue. Mary Sues can be stacked infinitely until the heat death. To put it basically, you have infinite space but you can only use a finite amount of any size. Any claims of infinity are invalidated by a bigger card. And that is The No U Paradox.