Why Palpatine Didn't Choose to Keep the OP Magnaguards 1

IG-100 MagnaGuards, or Magna Guard, were fearsome bodyguard droids and a type of battle droid created by Holowan Mechanicals. They were a favorite of General Grievous, who used them as his bodyguards during the Clone Wars, though they were also known to accompany other high-ranking Separatist personnel. MagnaGuards were equipped with electrostaffs that could be used against Jedi lightsabers and were capable of continuing a fight even with the loss of one or multiple limbs or even their heads. They were worthy competitors even to the most skilled Jedi, one was even able to back Obi-Wan Kenobi into a corner. While formidable opponents in close-quarters, they were also capable of piloting Rogue-class Porax-38 starfighters and using blasters and RPS-6 rocket launchers, and were often seen wearing cloaks. MagnaGuards usually fought in pairs of two, one to occupy the Jedi’s lightsaber and one to attack from the unguarded flanks or behind. The presence of MagnaGuards indicated that high-ranking commanders were present, and gave the droids automatic authority over other battle droids deployed.

Por Diego