The Brahmashirastra or Brahmashira Namaka Astra is the most destructive weapon, or Astra, described in ancient Hindu texts, capable of ending the existence of gods or devas. Thought to be a superior variant of the Brahmastra, the Brahmashirastra causes chain reactions of massive explosions and waves to annihilate any desired entity of the universe or even the universe itself. The weapon manifests with the four heads of Brahma as its tip. Agnivesha, Drona, Karna, Ashwatthama and Arjuna are the powerful warriors who possessed the knowledge to invoke this weapon. This weapon can be invoked into any object, even to a blade of grass.