Four Cowboys of Calamity

The Four Cowboys of Calamity are a folktale passed around by the survivors of the Spiral King's Genocide in the setting of Super Robot Wars IO.

They say that whenever there is an upheaval in the universe, tyranny reigns, and there is an imbalance in the Dharma, that Four Cowboys would appear to destroy the source of the instability. Their appearance would coincide with a great calamity, but bring peace to all the land.

It seems to be a bastardization of the popular four Horsemen of the Apocalypse myths.