Brahmanda astra

In the epic Mahabharata, it is said that the weapon manifest with the all five heads of Lord Brahma as its tip. Brahma earlier lost his fifth head when he fought with Lord Shiva. This weapon is said to possess the power to destroy the Universe or Brahmand (the 14 realms) according to Hindu cosmology. As recorded in Hindu puranas, when this weapon is invoked it will cause " the oceans to boil due to its heat and earth and mountains will float on the air and everything will burn without even leaving ashes". When this weapon is used for defensive purpose or counter to Brahmastra and Brahmashirsha astra it will swallow the above said astras and neutralize it. When this astra is used for offensive purpose nothing can stop or escape from it.In some texts it is called Brahma-dhanda astra, the weapon created by Saptarishi's to counter any weapon ever created, even that of Trimurti's. The rishi of this weapon is Para Brahman. It is said to be the most difficult astra to obtain. Capable of destroying entire multiverse in a blink of an eye. Vishvamitra used all kinds of divine weapons against sage Vashistha, but the Brahma-dhanda astra of Vashistha neutralized and swallowed all astra (weapon) of Vishwamitra proving that Brahma-dhanda astra is the most powerful of all astra's.