Just to clarify, the sword is possibly considered one of the rarest items in the game and has been part of the console game since console, mobile, and computer 1.2, seeing as I found it in my first couple of worlds there. Unfortunately, since I didn't do anything with screenshots then, I don't have one. If my memory is correct, it spawns in about 1:1,000 worlds. I also found it in a generated structure with I believe a heart in the center of it on mobile as well.