Granted. You become a prototype iPhone just as damage testing began. You survive, and when you return to normal, you can breath underwater and survive being sandwiched between 2 semis flying at 150 mph EACH. Or 150 kmph, whichever is faster.
I wish for a flamethrower that used surrounding air as fuel, thus it would never run out.
The Genie has no clue what exactly you want, so to everyone around you, you ARE the reaper! Until someone tells you this, you have no clue why your skin and muscles and body parts keep falling off your obsidion skeleton.
I wish to also become a living skeleton, but I could also change my bone colors and properties at will.