玄鐵

玄鐵是變形金剛中的人物，在領袖之證中是震蕩波為完成威震天所給他的任務提煉塞伯坦核酸時與天豹和眾多巨猙獰一起製造的史前巨猙獰複製品。

雖然玄鐵的出場次數甚少，但他的貢獻卻不容忽視。

Darksteel is one easily amused Predacon. Whether it's surprising Autobots, whacking Skylynx over the head with a bone, or thinking about the gutting of other Cybertronians, you can bet that Darksteel's going to laugh it up. At least he can stop joking long enough to scrap some Autobots.

Darksteel was created, along with Skylynx, by Shockwave and Starscream, who were re-creating an old plan; Project Predacon. Darksteel revels in combat, particularly combat that ends with him standing victorious over a damaged Autobot. Darksteel appeared in Predacons Rising. Darksteel laughs a lot, is very easily amused, and often has a sick smile on his face. These traits make him a jovial Predacon.