Cyn V/S Chara

Cyn is a an arrogant sadistic who finds pleasure and excitement in torturing her victims. She is manipulative, and an expert at her craft. Everything she does is highly calculated. She does get into it a little too often and toys around with her prey, but it always works out for her in the end. Cyn has a power called the Absolute Solver. It's basically an eldritch parasite that chooses multiple hosts and gifts them the power to destroy universes at the cost of the control over their bodies. The Absolute Solver can create, destroy, copy, manipulate matter, use telekinesis, regenerate, and create controlled black holes out of thin air. Cyn, being the main host has an extra ability. She can control other hosts of the Absolute Solver. The hosts of the Absolute Solver also gain the ability to kind of mutate. Like how every host gets wings and a tail that can retract into their body, but Cyn, being the main host, can mutate her body in a number of horrifying ways. Cyn is a robot known as a worker drone, but she has complete free will. She is a horrifyingly strong enemy that can easily destroy a universe for fun. Charra is a sadistic murderer who's also dead, but persists thanks to DETERMINATION and HATE. She's a soul. She is sadistic, evil, arrogant, and generally horrible. She hates anything and everything and will kill something just for existing around her. She once manipulated a child into killing an entire underground race of monsters who were just trying to live peacefully, and then she killed the kid. She is evil just to be evil. DETERMINATION and HATE are kind of powers that people can use, and Chara has both. When Chara first died, she persisted as a ghost thanks to DETERMINATION, and she uses that DETERMINATION in combination with HATE to manifest weapons and attacks that almost seem like magic.