okay so the ideas are really uncreative and silly
its a violin that changes stuff for no reason
its fire that eats stuff
its a guy called sushi. wtf
1: It's a violin that changes the surroundings depending on the song played. So if you play Highway to Hell on that violin expect the temperature to rise and fires to start.
2: It's a living fire, contained in a shell. Now that you mention it, yeah, it's kinda distasteful. It's basically Abel except fire version.(See: SCP 076-2.) It's practically the same.
Glass Shell = Stone Tomb
Living Fire that kills all = Some super strong guy that kills all
3: Said guy can teleport anywhere in the multiverse, can create a blue/white fire equivalent to that of stars, and is nice but then vanishes. No, I don't like this guy. If he's more powerful than Abel he won't be accepted.
So yea. There.