Saur (ザウル Zauru) is an Autobot Mini-Cassette, and the most powerful of the four Autobot W Cassettebots, being even stronger in the depths of the ocean. Despite this, he is peaceful and has a fondness for cute squirrels and widdle birdies. Saur is a mini-cassette that transforms into a dark blue (nearly black) Apatosaurus. He can combine with his partner Dile to form the humanoid robot Legout.