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Quasarverse: Lunacord: Esmeralda. She is the protector of the Dreamscape in said universe, and also has the talent to travel between realities and time. AKA, she is able to meet he Crystalverse ponies. Also, she doesn’t know it but she is also a living host of the Tantabus, who is trying to escape.
 
Crystalverse: TwiLuna: Artemis. He is the guardian of magic and prince of dreams, ruling and protecting the Dreamscape with once in a blue moon help from his twin sister Harmony.He is good friends with Esmeralda, especially considering the fact that they are half siblings.