Scar is the narrator of the Timelines series who sometimes joins in the fights as the Super Omega Ranger.
The little revealed of his past indicates he is a former Power Ranger who somehow ascended to his current post. He joined in a fight against a massive army of Centurius's minons to buy the Legacy Rangers some time, managing to destroy the giant monsters along with a copy of the Red Legacy Ranger.
Scar has the power to morph into his Ranger Form without a morpher by calling out "OMEGA POWER!". In Ranger Form, He can fire bursts of Morphing Grid energy from his hands and channel this energy to power up Rangers and Zords. He can also use his control over the Morphing Grid to summon past Zords and Weapons along with his own, the Super Omegazord.