Pokémon Go's Sinnoh Stone is a special evolution item ... but it makes many of the game's best Pokemon even more powerful - including Rhydon. For now, it means it'll take some time for players ...

Emerald improves on Ruby and Sapphire's flaws, adding in the Battle Frontier and the ability to ... and can defeat most Pokemon with a single hit, which is why it's one of the hardest boss fights ...