User blog comment:ArtDraw12/My hopes for future TD seasons/@comment-1298561-20140403011645/@comment-1298561-20140405043209

I wouldn't classify Lightning as a "secret" villain so much as a "last minute" one. He wasn't strategic and didn't do anything antagonistic before Eat, Puke, and be Wary. After Scott got the axe they needed something to take up the last two episodes, and to make the audience root for Cameron.