The Shredder

Oroku Saki is the ruthless leader of a criminal ninja organization known as the Foot Clan. A suit of armour equipped with metal blades and tekko-kagi, loosely based on that of a samurai, serves as the Shredder's visual motif. Shredder was presented as extremely cunning and was described by Splinter himself as the most dangerous adversary he ever faced. Shredder's intelligence persevered throughout his various portrayals, and in several instances, it is claimed that Shredder has an IQ of 300. Being a ninja master, he is a highly skilled fighter and commander.