Malagarr battle droids functioned as security units on Yavin 4, tasked with safeguarding Sith riches within the many Massassi temples. These droids, equipped with three arms, each brandishing a vibro-ax, protected the area. During the year 0 ABY, a Rebel trooper unexpectedly encountered some of these droids, and subsequently, Chewbacca annihilated one of them.