Convenience Theory (The Three Kingdoms)

"We do have this thing called the Convenience Theory that basically says if a creator made something that has an ability then it will have that ability whether or not it can be explained."

- Cirno

The Convenience Theory is a concept involving unexplainable abilities and features of everything brought into the  by. It should be noted that this is just a theory. The overrides this theory.

Statement
If a creator made something that has an ability then it will have that ability whether or not it can be explained.

The Ball and Post Paradox
The Ball and Post Paradox, also known as The Ball and Wall Paradox, asks what would happen if an unstoppable ball hit an unmovable post, or an unmovable wall. By the Convenience Theory neither can lose their respective abilities, resulting in a paradox.

Origin
was an goddess during Doomsday but was unable to replicate supernatural technology or concepts that were unexplainable by the concepts of her own world or prevent their effects, leading people to believe that objects covered by The Convenience Theory could not go against their defined abilities.