Guardian Knights

''"The Knights of Iacon are ancient. Among the most elite of Cybertronians, their warriors are not unlike those of your own from the... Medieval Ages? But that's all I can tell you." ''—Shockdrop

The Guardian Knights, sometimes referred to as the Knights of Iacon, are twelve elite warriors who were created by Quintessa to serve as her bodyguards. However, they eventually discovered her sinister motives and rebelled against her, stealing her staff and taking it to Earth where it came into the possession of a Human.

They can combine to form Dragonstorm, a mighty fire-breathing dragon.

The Knights include: Very few Autobots know much about them, though some of the Autobots describe them as being similar to the Human warriors from the Medieval times. Shockdrop later revealed that he was once a Guardian Knight himself, but he chose to follow his own path and fight alongside the Autobots.
 * Stormreign
 * Skullitron
 * Dragonicus
 * Steelbane
 * Shockdrop