The short story is like this:
While brainstorming ideas for a titlecard, Mouse suggested I should draw JewWario as a moth.
Later on ustream, Justin came up with the idea of MothraWario fighting Yanki J.
...and I am a sucker for ideas for really cracked art.
Apparently MothraWario is made of magic. Don't ask me, man, nothing about this has made sense since it was first born into the world of weird fanworks.