He has a multiple signs of illusion thins like the markings on his back and legs and ears. He has that tail jewel/light because he can
History
Illusion was just like any ordinary pup but he was fully black, his mother looking white with patterns like him, sort of, and his dad a black wolf with green patterns.
Illusion was always nice and kind and playful. But more curious than most pups. He found himself traveling in the woods and then stepping in a neon green goop, it was toxic waste. Soon he felt weird but shook it off and headed home. When he got there his mother waited for him, she wore the same necklace that looked like the one on his tail. She gave it too him before she died from cancer she had gotten and then passed away his father leaving him alone saying he was going to come back with a hunt. He sits there alone under the moon; his only friend. He starts to see something glow, it was his mother necklace that ties around his tail. He looked at it and then inside it saw his mother. He smiles...he was not alone. He sees something else glow a red like color. he walks up to water looking at himself as red appears on his black thick coat of fur, he didn't achieve any powers but did get a unique pattern.

