The Darkness

The Darkness is actually an evil version of Mario. He is also called Shadow Mario. But he is a little different than the original Shadow Mario. He appears in Stupid Mario Bros. wich is a parody on Nintendo's Super Mario Bros.

The Darkness has lived in Nox Decious' body for many generations. After Decious was killed by Wario, he was able to possess Mario. He fought with Wario and left after the fight. Later, Mario contacted Merlin who told him that the Darkness was taking pysical form. He is first shown in episode 37 where he takes the Black Widow Blade, Decious' Light Saber, from the orchard. At the end of Season 3 in episode 45 it is revealed that Decious is Shadow Mario master.

Later, in the Stupid Mario Bros. Movie he succeeded to give his old master a new body. He let him possess Luigi wich turns him into Mr. L. This is only so he could kill Decious by himself. He kills Mario with Decious' saber and reveals HIS plans to Mr. L. But Mr. L leaves. Right after this The Darkness fights Wario and leaves after the fight. Wario kills the Darkness..Or at least he thought he did. Later, during a conversation between Merlin and Waluigi, we found out that Waluigi forgot to learn Wario the Counter Curse. This curse turns the Darkness human and only in that way he can be killed. Right after this the Darkness comes back alive. He wants to take revenge on Wario. Luckily, Waluigi can tell Wario the Counter Curse right on time. Wario says the curse and finally kills the Darkness forever.