Black Hiver, or known as “The Black Winter” is the main antagonist from the MoBrosStudios film: YouTube Poop: Skellington’s Revenge. In the film, Jack creates a potion that makes him travel to Christmas land with “the lemon experiment” and he meets bugs bunny. He asks him to help about taking over Christmas Time and he accepts. Jack Skellington disguises as Santa Claus, then his magic painting makes all of the YouTube poop characters enter the “other dimension.” When they do so, The Black Hiver rises. When Jack Skelington decides to do his magic spell backwards, he explodes causing to free all the YouTube Poop souls.