Stars Without Number
It’s unclear what The Synthesizer actually wants, because they never speak. They are loyal to the Greenfingers and have an unusually large amount of self-control, for a Floran, however.
The Synthesizer is not the only Sythesizer, but many have fallen to the Nufloran, and many more have defected, turning against the Greenfingers or simply fleeing the conflict altogether.
All Synthesizers wear the Synthesizer armor (a variation of assault armor focused on mobility and camouflage), and wield specially-made kinetic spears (which have the raw force to impale small mechs thanks to built in accelerator pulse emitters).