Shadow, our main hero across many iterations.
Quote: "Train till death then rest a day."
Backstory: He was kidnapped by humans at 8 years old and taken to a lab where they experimented on him, while in his confinement he evolved into an Umbreon his unusual red rings caused by them. The experiments forced him to go past level 100, he is currently level 500, his father rescued him a year after he was kidnapped. The humans killed his father in front of him during the escape. Shadow returned as an adult to discover something unknown caused all the humans in the lab to disappear. He found the file they had on him and found that they killed off all the other test subjects not long after his escape, over a million other mon.
Personality: Best learned by having talked with me for months or reading books with him in it, because I can't quite describe it