User blog comment:SethOmega/Bracchidios Discussion/@comment-4695408-20111227181930/@comment-5020152-20120415003159

My theory is that the plasma's stability is controlled by the Bracchidios itself, and so will explode whenever it is separated from its body. Also, this would explain why it goes off instantly when the Bracchidios is enraged, because it cannot control the plasma as well as a calm Brach.