When one of these devices is displayed and a command uttered, all intelligent hostile creatures within a 4" radius must save versus magic or become enraged. 

Those making the saving throw may perform normally; enraged enemies will fly into a berserk fury and attack the nearest creature (even their own comrades): +1 "to hit", +2 on damage, -3 on their own armor class. 

The rage will last for 7-12 rounds, and during this period, the enraged creatures will continually attack without reason or fear, moving on to attack other creatures nearest them if initial opponents are slain. 

A scarab of this type contains from 19-24 charges.