Here's one I commissioned from
Exxidor.
An alternate take on the Oracion Seis arc from Fairy Tail, about a superweapon that can flip alignments, turning good people evil.
Master Zero is successful in harnessing Pandora's alignment-switching power. He enacts his stated goal of replacing his defeated guild members with the heroic wizards that bested them. With Pandora, he is able to permanently warp kind-hearted, noble mages into the evil, heartless monsters he views as the ideal pawns.