Sabre

Sabre is the nominal leader of the Brotherhood of Guardians and the son of Athair, the only Guardian to have ever left the Brotherhood. This decision of Athair's, coupled with the fact that he effectively abandoned his mother Janelle-LI in Sabre's eyes, led to a rift between the two that has not yet healed. Sabre participated in a number of activities against the Dark Legion in Knuckles' time, before ending up imprisoned in the Twilight Zone by Dr. Finitevus

Youth
Sabre was born to Athair and Crystal-La, his mother a member of the Lost Tribe of Echidnas. Until he was seven years of age, Sabre lived with the tribe, serving under his father. Eventually, the Ancient Walkers told Athair that his mother was dying, and Sabre encouraged Athair to go to his grandmother. When Athair refused, Sabre left for Angel Island and took on the Guardian role himself, becoming apprenticed to Archimedes, the same Fire Ant who would later train his son Locke and his grandson Knuckles.

After Echidnaopolis' Return
Sabre and Locke intervened the most in events in Echidnaopolis and on Angel Island in general following the city's return to Mobius proper. Their most radical action involved using their link with the Chaos Emeralds of Angel Island against Mammoth Mogul during his battle with Super Sonic, Hyper Knuckles, Turbo Tails, and their allies; this resulted in the creation of the Master Emerald. Sabre would also join the rest of the Brotherhood in fighting the Dark Legion, notably following his ancestor Mathias and the others in attacking the Dark Legion at the Grand Conservatory. Sabre, along with the others, was transported to the Twilight Zone by the Quantum Beam and later returned home by Knuckles to find Haven in ruins. Later, he and the other members of the Brotherhood would defend the Master Emerald from Dr. Robotnik's armies, only to fall helpless into the clutches of Dr. Finitevus, who studied the Brotherhood to learn more about their Chaos abilities before dispatching them all to the Twilight Zone once again.

Possible Future
Mobius: 25 Years Later shows Sabre in a vegetative state, possibly due to some unknown illness that he could later contract in a possible future.