first of all the 1/8192 chance only applies to Gold, Silver, Crystal, Ruby, Sapphire, Emerald, Fire Red, Leaf Green, Diamond, Pearl, Platinum, Heartgold, Soul Silver, Black, White, Black 2, and White 2, which are before gen 6. X, Y, Omega Ruby, and Alpha Sapphire, the gen 6 games, and onward, the full odds were cut in half to 1/4096 so the odds would vary depending on which games you are playing.