First, to cover his bases with the stone. "I wish that, except when I or someone else I should designate will it to appear, the stone will exist in a pocket dimension, like anime hammer space, and that when it is so called it will appear in the hand of the summoner." He tested it, watching it disappear and reappear, throwing it across the room only to see it vanish in mid-flight when he wanted it to, and reappear in his hand again upon summoning.
Satisfied with his precaution, he moved on the second part of his wish. "I wish that, until I say the work 'vershaklamin', or if I am unable to say the word, think it, the wish I am about to make will be in effect, and that when this following wish ends things will return to exactly as they would have been if I had not made that wish, including returning everything to the exact second at which this wish ends, except that I will remember everything that happened while the following wish was in effect." That mouthful, he thought, would cover any contingency that might arise, and the word he had chosen was sufficiently gobbledygook that he should have no trouble not saying it until he meant it.
Finally, the meat: "I wish that my life were like a 'Choose Your Own Adventure' Novel, except that I will be able to call up the choice only when I wish, that the option that I want will always be present, that I may back up to any point in the adventure I choose, and that no bad options will appear."
The Stone flashed, and once the light had gone, Jon let it go away.
What to try first?
