The Elemental Empires

This is a story of elemental empires which are located on a galaxy that is split into two halves. One half has got solid elements planets with various islands representing each element, led by a elemental king or queen; the other half has got liquid and gaseous planets, with different elemental empires scattered on separate islands. Each of these elemental islands have domes covering their island to keep their life forms and environment sustained within.
Once day, they all unanimously decided to summon a new elemental King known as Steelon at the request of aging King Ironum, who later becomes so arrogant about his strength & superiority that he tried to become an undisputed ruler of the entire galaxy, not realizing that other elemental kings and queens whom he thought are no match for him have planned a surprise for him.