This is how Kylo-Tron is born goes in The Rise of Kylo-Tron.
[We see the bottled up anger next to a suit of black armor]
Starlight Glimmer: Trixie, are you sure you know what your doing?
Trixie Lulamoon: Relax, Starlight. Finally the Autobots will have a new member. [accidentally drops it] Oops.
[The bottled up anger breaks and releases the anger to the suit of black armor which twitches a little then comes to life as its visor turns red]
Starlight Glimmer: Uh-oh.
Trixie Lulamoon: Starlight, I think we should run.
[Kylo-Tron smashes a hole in the wall and walks off growling]