JK-13
this JK-series combat droid was captured by the forces of the Old Republic and investigated for many weeks, after it was learned that Count Dooku and the Separatists were planning to buy huge quantities of JK's for their armies. JK-13 was first shown to the galactic government and the Jedi Knights at T'Chuk arena, on Coruscant, where it had been reprogrammed to act at a non-lethal level. After defeating a droideka and the ARC trooper CT-36/732 in one-on-one combat, JK-13 was pitted in battle against Jedi Master Kit Fisto. Only Master Fisto's unusual attacks allowed him to defeat the droid.