"What is the undisputed strongest Pokémon and why ?"

This might be a dumb question but i've always wondered.I've played the first games (blue, red) and always thought Mew was the strongest. I remember playing Ruby and Sapphire, and hearing about a certain Pokémon called Deoxys, but i never found it in the game.There are so many new Pokémon now that it has become rather difficult to find a definitive answer anywhere on the internet.So which one is the strongest and why ? via /r/pokemon https://ift.tt/3hoBVBF