Beta Helios is the final form of Omega Helios who was the guardian of Wrath
When Sigma Helios was about to give up during a fight with Omega Drago,Wrath used 5 illegal abilities at the same time and triggered the transformation into Beta Helios. Wrath then used over 30 illegal abilities in the battle to keep Helios in his Beta form.
This form was never seen again after the fight because Sigma Helios turned on Wrath and severed their connection as guardian and brawler, and turned himself in. He was then taken by Blaze and turned into a normal Viper Helios and given to Phi and tries to help around the house with Omega Drago.
He does not have one.