Unidentified IG-100 MagnaGuard (Green)

This MagnaGuard, alongside a gold counterpart, were present alongside a few other Separatist-aligned battle droids in the caves of Utapau. However, several of the droids ended up devoured by Nos monsters. The attack was also such that both IG-100 MagnaGuards were temporarily deactivated while subtly entering repair mode due to their containing a self-repair unit.

By the time of the Battle of Utapau, General Obi-Wan Kenobi, who had been forced to flee into the caves due to his clone troopers turning against him, encountered the two, also noting the droids present were devoured. The green one reactivated shortly after Kenobi temporarily put down its gold colored counterpart, and upon rebooting, detected Kenobi's presence, recognized him as an intruder and prepared to terminate him. He then fought the two, eventually destroying them quickly after learning of their self-repair function.

Text and facts from the “Unidentified IG-100 MagnaGuard (Green)” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.