Necrostorm

Creation
Found in a Capsule, Necrostorm was completed  when Dr.Gerald during the time X was being built. He had far superior weaponry than any of the old Maverick Hunters or any Sigma body that had ever existed.

Slumber and Reawakening
Necrostorm  was sent to go on a mission of self discovery while he waited for his "brothers and sisters" to be born. When Gerald died, he saw to the completetion of his family until the day he couldnt function.

When the Day of Sigma arrived and the start of the Maverick Wars began, only Necrostorm was reawakened and repaired. He choose to join the Maverick Hunters when his "family" was finished.

Using the Designs from the Robot Masters of the Past, he matched up each Element (Fire, Ice, Water, Leaf, Etc.) to each member of his family. And from there the Element Squadron  was born.