Sol is a Blue Sentient and Sage's mentor. His Red Sentient twin is Kytren, the Scout of the Red Sentient 5. Therefore they share a weak telepathic link, similar to Krytus and Sage. His vehicle is a Blue Sentient Vylirex.
He was the last original member of the Council of Five.
He sacrificed his life in a failed attempt to destroy his brother and his respawn chamber.
He left behind his Blue Hadron Allotrope at The Hub, which means that theoretically someday he can be regenerated.