A Sequel for my Villain OC: Trio of Chaos: Part 1: Let the Chaos Begin (Crossover of Equestria Girls, Gravity Falls, and The Owl House)

Even though he was stuck in the bottom of the ocean, a portal opened and Phantasmas was sucked into a Black Void. That's when he encountered a creature who called himself Bill Cipher, Bill said he was going to incinerate him for shits and giggles, but before he could, they are both stopped by what appeared to be a child. A Child at first had an innocent face that any child would have, and said that he wanted both of them to play with him, but when Bill started pestering him when the child was speaking in rhymes, the child's face turned to a psychotic grin, as he enveloped both of them in dark magic that would've destroyed them both if Phantasmas didn't persuade the child not to destroy them.

The child wanted to go to either of their world's so he could make them his eternal play-things. Phantasmas and Bill Cipher agreed to work with him just to ensure that they didn't suffer the child's wrath again. The child then revealed himself to be the Collector, an entity created from chaos. Phantasmas then called him Junior, making the child angry, almost destroying them again. Bill then gave an angry glare at Phantasmas for almost destroying them.

Phantasmas was relieved when he still had his God-Like and reality-warping Powers, he vowed to make Sunset's life a chaotic misery. He then persuaded the collector that spreading chaos would bring more friends to play with, peaking the collector's interest.

They then initiate operation: Mix and Match, where after revealing themselves to Sunset Shimmer, Dipper Pines, and Luz Noceda, they proceed to send them to alternate universes, Where Dipper goes to Collector's Void, Luz goes to Phantasmas's Pocket Dimension, and Sunset becomes Bill's Plaything.

What will happen to our heroes, find out when Part 2 of this 3 part trilogy comes out.