Ok a lot of speculation but just go with me here (Let be clear in know i am saying marco is a butterfly or rleates ro star in any way)
Ok first marco in season rhree we have seen that he has symbols on his cheeks now or maybe always and that he can use magic with we still dont know why
And that he and star have a deep connection epsically him (notice that red moon has appeared more for marco then for star and that some how marco heard tbe moon or some ones voice )it seems to each other and the red moon
All that is one still a mystery but what is really starring to catch my eye is that color red seems to play special place when concern marco his favorite color is red he alwaya were red hoodies he is a red belt his scissors symbol contain color red (yes more yellow the red but still) now all probably thinkinv those are juat conindece or something
But just think isnt rhat all a little to odd how much that appears for him
And now that big red monster who eclipsa married he seems to be special even for monsters( maybe he was the monster king) i dont know why but just something about him and isnt a little weird that know one has brought him up or what happen to him
Now the remember when when wand transformed for marco it went through three colors
Red
Purple
Blue
Now in this series purple seems to be connected to dark magic
Blue unknown But red again a color assoicated to marco and big red monster
So what i am saying is what ic marco and monater has a connection like he reincaRtion or some how gor some of his power