I Don't own Warhammer.
It is said Orks can and able to conquer the galaxy if only they unite.
"Spikkey boys god is nuthun but puny pansies" Said a Warboss. The idea spread and catch on in all Orks. Much like when orks said "Red make one fastah" it became truth through their collective psychic aura. The chaos gods collectively became pansies. It happen to the other gods even the emperor.
"Grey boys are stinky lot." and the collective orks made it so. The T'au ethereal pheromones are now overshadowed by their odor.
"Waaaghh!" shouted the green tide. Now unchallenged except for the remains of the eldar, humans and t'au.
"Cept for One-Eye Yarrick. He knows how ter fight."
