While Lex terrorised the Dream realm, mainly because the realms suppression of him was based on his cultivation realm rather than his strength, he found it quite interesting that he randomly learned a bit about devil lore!
Apparently, prior to conquering Garvitz, Devils had a much worse reputation! They were evil incarnate, indulging in mass slaughter, carnage, deception of all kinds with insatiable bloodlust. However, as if by some magic, the nature of the Devils suddenly changed after taking over Garvitz.
They became business oriented, focused on conducting trade - albeit a trade of souls and spirit, but trade still. If the buyer was smart and wary, it was entirely possible to conduct business with Devils without coming to harm, which is why their reputation had spread across the universe.
