>>4746681#2, Goat Tower, hands down.
#1 turns you into a fucking pedo in a land where I can't speak the fucking language, with a wife who appears to have serious issues that will surely be a problem later in life.
With the teleporting goat medallion, you could pull off the greatest heists in mankind's history. You would leave no trail, and so long as the sacred tower was never disturbed (the two footed fools would have no reason to suspect it), you base of operations would remain hidden. Of course, I would leave unsolveable riddles at every scene to throw the pigs yet another curveball:
"At dawn I have 4 eyes, at noon 8, but by dusk I am blind! My next target has been declared, if only you open your eyes!"
I would become a real life super villian!