ok as you can tell from the title this is a young justice MLP crossover challenge but pacifically King Sombra being sent to the young justice world wen he was blast it by the crystal heart and ended up being Superboy's AKA Conner Kent new pet he love Conner and he love causing misery and fear to the team and justice league wen Conner isn't looking.
how you make it is up to you.