Shredder used to be a Bisharp, who was abused by his trainer, dumped by his GF, and almost disintegrated, and all of this was due to his rival, Zapdos! Nowadays, he has only one eye; an eye scarred by the blast: Spiritombs's Hyper Beam, Lucario's Aura Sphere, Mewtwo's Psystrike, and Zapdos' Thunder. Then, Spiritomb and a Darkrai tried to take him over, but his willpower absorbed him. (Evil is SE against dark, fairy, bug, and psychic, weak against fighting, and normal, and same goes for the inverse. This guy went and killed Zapdos in one hit with a steel type move. at a level 1/2 of Zapdos'. Yeah. He isn't actually that dangerous to you as long as you don't tick him off, as he has a one-track mind. Oh, and don't even try to show him turtles or rats, he seems to have a hatred for them. I wonder why...