on an alone mission, earthreax went to a dangerous part of the makuta territory, the blak tornado valley. his reasons for going there are unknown but what is known by the oomn exsamination after rescuing him is that the tornado was designed to be fast enough to start ripping apart earthreax's DNA, thus when tactoron issued a counter tornado to weaken the black tornado to save earthreax from it, his shredding DNA consumed the air energy, so when he finally " stopped spinning" he was half toa of earth and half air, thus for reasons unknown the power to control air also. earthreax and his new oomn agent partners agreed that to keep earthreax safe from further endangerment, he would have to change his name to erairex. from the oomn's scientist examination, the black tornado consisted of makuta energy, which was what allowed erairex to now control air. but from tactoron's record check, he is unsure as to which makuta could muster such a powerful weapon, and how he could make so many of them...
due to my shortenings of pieces, i had trouble rebuilding earthreax, now erairex. but i do find him a very intriging looking moc and i like him alot so i hope you will too.