413221 I took care of it when I saw your comment I think you for the mention.

A troll has been going around submitting a story to a mass number of folders and groups. After 3 hours of combing I found the story in 3 Folders in this group
The story - The Ravaging of Rainbow - is a single chapter fic of 1131 words labeled as Complete and makes no mention of Thorax or changelings at all.
it is in
Crossover
Random
and Romance.

411891
Huh, that's awesome

411857 He's voiced by the same person who voiced Vinnie Terrio in the recently wrapped up Littlest Pet Shop cartoon, don't know if he's done other voice acting roles prior to Vinnie and Thorax though.

I would really like to see more episodes with him learning friendship lessons from twilight and starlight ;)

411783
It really is, Thorax is awesome

His voice is the best