Magna Guard

Magna Guards are Separatist battle droids used as bodyguards of General Grievous and other high-ranking Separatist personnel.

Overview
Magna Guards were a favorite of General Grievous, who used them as his bodyguards, though there were also known to accompany other high-ranking Separatist personnel. Magna Guards are equipped with electrostaffs that could be used against lightsabers and were capable of continuing a fight even with the loss of one or more multiple limbs or even their heads. They were worthy competitors even to the most skilled Jedi and usually fought in at least pairs of two, one to occupy the Jedi's lightsaber and one to attack the unguarded flanks or behind.