From a story aspect, I as an (amateur) writer, honestly think that Click (yes, I know this was a joke. But refuge in audacity is not a bad thing, if played right) and Vastus would be the best candidates. Click, who completely vanished into obscurity, after Teridax's death, had literally no real history, or legitimate details or personality. He was a cute little beetle who could transform into a really cool shield. And he saved Mata Nui's life, which was obviously in the best interest of all parties involved. Well, Velika's, atleast. The reasons for Vastus have already been mentioned, but it would make a classic twist on the story, of course. In addendum: After joining this forum two years ago, I can proudly say this is my first post. I'd forgotten my password, and soon thereafter, this website. YESTERDAY, after all this time, I finally remembered my password. And this website, of course. Still catching up, of course, but, that's natural.