I was surfing around Derpibooru when I found this pic that gave me an idea.

Basically Mane-iac used the power orb to make herself grow and knocks the power ponies...ranger, whatever away leaving only Humdrum. After having some fun with him she sets him down and starts to rampage around the city. However Humdrum or Spike's newfound desire for her awakens Humdrum's power and turns into Spikezilla. You can probably guess the rest.

I might do this but it will probably a long while before I get around to it.

2855524 So... it'll be like in .MOV when Discord fucked that giant in the city?

2855588 Not sure what you're talking about but probably.

2855611 You never saw the .MOV series on YouTube? Dude, my non-brony friends have seen that.

2855643 I'm mostly a fanfic fan.

2855588 omg YES!!!

So many things she could do to him. Run Spike. Run.

2856765 Yeah like eat him, I really don't get why people like that.

2865459
eat him? oh no. something a lot more..... extreme. And suffocating.

Iffa ya catchin mah drift. *wink wink nudge nudge*

2855524 ohh I like it.......