Aelios (pronounced: Alle-os) is a fiery-tempered penguin that serves in the Imperial Forces, known to others as the Imperial Warlord of Fire. Like his title suggests, Aelios can manipulate fire and hopes one day to bring Antarctica in a blazing inferno for his own enjoyment. He is a master of Card-Jitsu Fire and is a devout follower of Fire Sensei. Coincidently, Aelios is the next in line after Fire Sensei to continue the training of fire ninjas, just as Xel'Naga is next in line with the training of Wraith Ninjas. Aelios and Xel'Naga are the only two imperial warlords that have been trained under a sensei - the other warlords have learnt their element by themselves.