玄铁是变形金刚中的人物，在领袖之证中是震荡波为完成威震天所给他的任务提炼塞伯坦核酸时与天豹和众多巨狰狞一起制造的史前巨狰狞复制品。

虽然玄铁的出场次数甚少，但他的贡献却不容忽视。

Darksteel is one easily amused Predacon. Whether it's surprising Autobots, whacking Sky猞猁属 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.

登场

玄铁在变形金刚领袖之证中第三季第十一集才与天豹一起现身，他们两个是震荡波研究成果中幸存的，没有被千斤顶手榴弹炸死的两只巨狰狞。随后与天猫一起被冲云霄的强大打动，甘愿做起下属。在保卫塞伯坦星球的火种源中起到巨大作用，抵御住了宇宙大帝和僵尸巨狰狞的攻击。

主要成就

威震天死后被宇宙大帝控制，宇宙大帝因与元始天尊不和，因此要破坏其所化的火种源，就在众人一筹莫展之时，玄铁与队友天豹和其领袖冲云霄一起冲出并发射火焰，拖延了时间从而使擎天柱打败了宇宙大帝，因此火种源得以保存。

结局

在《变形金刚：领袖之证》的后续继作《变形金刚：领袖的挑战》的S02E18“Mini-Con Madness”中，红蜘蛛解释他是怎么从巨狰狞的围殴中逃脱的。在红蜘蛛的回忆中，天豹和玄铁的一路追杀他到了黑山的深处，而就在黑山内部某个的实验室中，急于逃跑的红蜘蛛无意中踩到威震天遗留下来的镭射炮台的开关使得炮台开启，随后镭射炮台射出的光束击中了追赶过来的天豹和玄铁（Transformers: Prime Wiki里面有提到他们已经死亡）。