Originating from hit MMORPG Final Fantasy XIV (GCBTW), the law states that the more Ultimates (the highest/most difficult tier of content available) a person has cleared, the worse a player becomes due to arrogance, snobbery, and general "I don't give a fuck" attitude. The term was coined in a Discord call by resident elitist "Yui Mikazuki" when she noticed those making the most mistakes were "Heavens' Legends BTW".
This RDM can't figure out TItan gaols even with automarkers. "Heavens' Legend BTW". Yui's Law in effect.