Each of the Prime colonies are going to have at least two notable NPCs. They won't all join the relic hunters; I just thought it'd help with worldbuilding.
Weapons, Abilities, and Equipment: Exilis can project a set of Energon armor over her body in both robot mode and sword mode. In sword mode, this armor can heat up to extreme temperatures. She also wears the Chimera Stone, the artifact of Micronus Prime, around her neck. The stone allows the bearer and their allies to share their abilities amongst themselves.
Bio: the recently-elected leader of Vergrandis, who already has a decent grasp of the responsibilities of the taxing position.
This head, but with the robot mode's colors.
Weapons, Abilities, and Equipment: Coaxial owns a combat-class transtector with a Cybertronian tank alt-mode. It resembles the Titans Return Hardhead toy, but with Coaxial's color scheme, of course.
This transtector is equipped with a blaster rifle and a quagma cannon.
When united with a transtector, Coaxial can coat his armor (and that of the transtector) in a durable, silver alloy that allows him to take less damage in combat. Unfortunately, his weapons and T-cog are inaccessible to him when this alloy is in use. When not using a transtector, Coaxial carries a rifle that fires hard light projectiles.
Bio: a corporal in the Vergrandian militia who doesn't quite grasp the concept of formality, and sometimes leaves things to the last possible minute.