The Makluan Overlord was the overlord of the entire Makluan race, wearing the ten rings, he was powerful. He is the final antagonist in the series.
When the Makluans started, the overlord and his race conquered and extinct planets with the use of his ten rings called Makluan Rings. One day, a weakling who was his own son, captured the rings from him, making the overlord search for ages.
When the rings' energy source was discovered, he led an invasion to Earth to retrieve the rings and start extinction on Earth. Mandarin, who was forcing the world captured him and retrieved the rings by himself and told the history of the Makluans, almost the same as the Makluan guardian's story. He then captured the armor heroes and cause a battle with their strong Makluans then the most strong Makluan in the Makluan race. After the battle, he let them out of the battle back to Earth, capturing Gene as his prisoner and looking at the occurring events on Earth. When Team B of Earth made it to the overlord's chamber, Tony with the help of Extremis took down the overlord with Howard's device that could disable temporary the rings' powers. The rings were taken by Gene and were taken down, then Iron Man left behind battled. He died after the reactor exploded by Team A.
Total control over the Makluan Rings, owing to their being made for him. He was capable of using these rings to conquer worlds and control the Makluan race.
Weapon summoning: This ability gives him the power to summon the Makluan rings, as seen in the Makluan invasion of The Earth when the Mandarin was teleported aboard the Makluan warship where the Makluan Overlord took the Makluan rings back from Gene.
Makluan ring reactivation: Even in the last episode, the Makluan Overlord couldn't reactivate the power of the rings he can now reactivate the power of the rings to defeat Gene and his friends.