Sonata Dusk

Sonata Dusk is a character from My Little Pony Equestria Girls and is a major reoccurring character in The Knights of the Multiverse, introduced in opening Mini-Series. She's a member of The Dazzlings, and originally reappeared in the third season as part of the Guild of the Multiverse, but after a good number of battles, she would end up joining the Crystal Knights after being abandoned by her sisters for her failure.

Personality
Sonata is generally carefree and air-headed, often forgetting the group's main objectives, perhaps hinting she is not as obsessed with power as Adagio and Aria are. She also seems to really enjoy Earth culture a lot more than her sisters, especially tacos, and is also a lot more forgiving towards Sunset for defeating her and her sisters, with her appearing to be the most desperate to better herself. Despite this, she can be just as cruel and devious as her bandmates, if at times unintentionally so.

Aria Blaze
Sonata and Aria frequently argue over, honestly, really trivial matters.