can just imagine, at the end of the final boss fight, we see a lone rubric marine with a piano, he says: "Congratulations, you have put a small dent in my plans. However you shall not win... " *begins playing piano and teleports all of them back to their safe area*
As far as I know the idea was... Discovered in the "So this is where the Heretics Reside," thread, which you could call the deepest and darkest place known to this Forum.
This guy is a perfect mascot. Destroyer of Trolls, has nice inspirational speech, good manipulator to convert more people to like this game, able to to "give" gifts to those who follow the game without doubt. The only downside is that he tends to prefer chaos a bit too much. . I think.