Eclipse is a puppy just like Courtney. She was used for evil just like Cynder. After Yveltal did some destruction years ago, she was separated from Diancie's Carbink elder; Dace and was corrupted by Set's dark, poisonous powers so she can do his bidding and evil work. But, she was defeated and returned to her normal self thanks to Courtney and the Thunderbolts.
- Fighting along side her friends
- Sea-salt ice cream
- Brushing her fur
- Her close friend Lapis Lazuli
- Her boyfriend Patches
- Courtney Elison
- Little Betty
- Reading Books
- Her idol; Batgirl
- Being called a traitor by some villains
- Fleas and Ticks
- Seeing her friends being bullied
- Not having any parents, brothers, or sisters
- Cleo Quinzel
- Seeing one of her close friends being sad
- Being grounded
- Villains physically hurting her friends
- Courtney running into places that are dangerous and forbidden
- Mephisto and Praxina
- She has a boyfriend named Patches who works with the Pound Puppies. They'll get married in the future and have a daughter named Midnight Twinkle.
- Eclipse is also good friends with Lapis Lazuli due to having one thing in common: Being used for horrible reasons or for evil.
- Eclipse can wield the elements; Poison, Fear, Wind, and Shadow just like Cynder.
- Eclipse views Batgirl as one of her idols.