Chapter 584: The Holy Yet Corrupted Skeleton Knight

While I know that Skeletons can evolve into higher forms of monsters after gaining quite an experience, I didn't know that the summoned skeletons I have summoned out of nowhere would evolve, heck, I didn't even know it can do that. They might be skeletons and products of necromancy but they didn't rise from a corpse, I summoned them from literally nothing and yet it seems the law of this world still applies to a monster that shouldn't have been part of the so-called undead that dwells on this world.