This guy screams "EXTREEEEME" all over - he is a Cyborg, A Monster, a Tank and to top it all off, he has a Flame Thrower in the tail XD

Introduced on Episode 32 of Great Mazinger under the command of General Birdler, Gracis was an Aerial and Land Assault purpose Warrior Beast that nearly resembles a Sphinx. It was one of the Few Beasts in the series that could split into two functional entities, like the Mammalian Kirinia and the Reptilian Iguanas did. He had missile launchers in the front of the tank, and Flame thrower in the tail and fired a beam of Sonic Rings from the mouth. Gracis had a heavy armor that protected him from attacks. Interestingly, while Gracis had the human face in the center, it's Bird Half contained the Brain, the Tank half was remote control, meaning Gracis was the only Warrior Beast to not contain his human Brain in the area where the "real" face was located, as it was with most Warrior Beasts - this is proven by the way Great disposes of the Bird and the tank does nothing to stop him.

During his first encounter with Great, it had the upper hand, as Tetsuya was reliving lost memories from his childhood (when he was attacked by a hawk while protecting a small bird). But before Gracis could finished it off, he was saved by Jun on Venus A, allowing him to escape. While Tetsuya retreated to deal with his childhood fears, Venus and Borot held off Gracis and protected the Science Fortress to no avail. Finally Birdler plotted to destroy the Fortress by using the Tank half of Gracis as a Bomb while the Bird half fought Great Mazinger.

Great dispose of the BirdGracis with a combo of Typhoon breath, engulfing it with his own flames, then cut the flamethrower with the the Great Boomerang, then he impale the Great sword onto the bird's head and finishing it with a Thunder Break. Great dispose of the TankGracis by carrying it away and taking it under the sea, to save the base from the blast.