Magikarp

Magikarp is a fish-like Pokemon from the Kanto region. Magikarp is extremely abundant and can be found pretty much anywhere. It is known as the weakest and most pathetic Pokemon in the world considering that it doesn't do much. It doesn't have a lot of attacks and its speciality is flopping around.

Laughingly enough, Magikarp can evolve into a massive and incredibly powerful Pokemon named Gyarados, which is a really great attacker, incredibly massive and extremely intimidating. How this even came to be is anyone's guess.