AX-IV is a planet in The Transformers:Infiltrators. It is classified as a 'Type 5' planet, or a 'death world' in simpler terms. It is populated by Sandworms and a single humanoid robot. It's main interest were the massive deposits of energon that ran deep into its crust. The energon was all stable, able to be inputted directly into a Transformers circuits. [Source] ">