Dark Star

Representing Mischief, Dark Star's existence was a complete accident. 

When Star Master's mental health was at her worst, she created an edgy character to troll her haters on YouTube. She was meant to be just a character until the December 2018 Incident. Turns out that emotional energies can be strong enough to cause fictional characters to become sentient. (Who knew?)

Despite the nature of her creation though, Dark Star sticks to her being a troll and to the latest Edgy design as possible. I don't think she could cause any major harm to the starmates. She's just that cool (and edgy).