I'm keeping him. When you make a story for your adopt while designing it, you just feel attached to it. That happened here. Casimere is mine.
Story:
Casimere was born without a front right leg. When he turned into a teen, he got a robotic leg to fill the gap. Casimere loved it immediately. He was always bullied, so he threatened to blast other Shade Wings to pieces if they hurt him. When someone did attack him, he had no defense, since he had always lied, and suffered severe injuries. He lost his other front leg, gained massive scars on his flank and face, scratch marks on his gems, and a awful attitude. After recovering, he gained another robotic leg to fill the gap of his lost left leg. He demanded claws to be added to the robotic legs. No harm was seen in this, and everyone went along with it. Casimere returned to the Shade Wing who had scarred him so. The other Shade Wing was scared of him, seeing his glare. He tried to call to Casimere, to make him stop, but it didn't work.
"You have to pay for your actions," Casimere hissed simply. Casimere had only planned to scar the poor Shade Wing, but he ended up killing it. "Wait, I.. I didn't mean to..." Casimere whimpered as he stared at the blood on his paws. "What have I done?"
Casimere soon discovered that the Shade Wing he killed was the leader of an alley pack. Out for revenge, they swarmed Casimere. He didn't want to fight them, but had no choice. He scarred every one of them. Soon he gained a reputation as a street fighter and went insane. That's when he was found and put up for adoption.