>>95977039
It's the rules text AND the flavor of the card that got Cleanse banned.
Cleanse destroys black creatures with the flavor of "Purging this land of unholy filth"
Virtue's Ruin destroys white creatures and says "Your heroes are dead"
It's why Mass Calcify can have "Destroy all non-white creatures" and be fine.

The real travesty is this Elspeth Vs. Tezzeret art getting banned in the crossfire.