"You have tresspassed on the site of our glorious temples. Return to your post at once, and resume serving your Arkeyan Masters."
The Arkeyan Conquertron is a giant robot built by the Arkeyans. He appeared in the console versions of Skylanders: Giants, where Kaos managed to take control of him upon his return to Skylands.
There is also a Conquertron Skystone for sale in Bringing Order to Kaos! in Auric's shop is just outside the Throne Room. The Conquertron Skystone is worth 6,500 gold coins, but it is the best Skystone in the game, having 4 blades on every side.
10,000 years ago, the Arkeyan Conquertron was a security robot who ensured that none of the enslaved Mabu slacked off on their work or attempted to escape. He was confronted by the Skylander, or Giant, and attempted to stop them from destroying the chains supporting the platform the Conquertron was standing on, but failed and fell into the abyss.
The Conquertron was discovered years later by Kaos upon his arrival back to Skylands, and the electricity that still lingered on the evil Portal Master inadvertantly brought the Conquertron back to full power. Kaos then took control of the Arkeyan after the robot sensed the evil Portal Master's desire for conquest and proceeded to aid Kaos in his quest to rule Skylands.
He is voiced by George Takei who is well-known for his role as Hikaru Sulu on Star Trek.