Board Thread:Questions and Answers/@comment-31725345-20171222073144/@comment-33102954-20171228122337

Like in Bramastra was powerful enough to destroy worlds. "If the radiance of a thousand suns were to burst at once into the sky, that would be like the splendor of the mighty one. Now, I have become Death, the destroyer of worlds.” (Bhagavad Gita). Brahmastra. the Brahmashirsha astra is the evolution of the brahmastra, 4 times stronger than the brahmastra. 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 Siva.This weapon is said to possess the power to destroy the Universe or Brahmand (the 14 realms) according to Hindu cosmology. In Mahabharata era Parasurama,Bhishma,Drona,Karna possessed the knowledge to invoke this weapon. The Pashupatastra (IAST: Pāśupatāstra, sanskrit: पाशुपतास्त्र), in Hindu History, is an irresistible and most destructive personal weapon of Shiva, Kali and Adi Para Shakti discharged by the mind, the eyes, words, or a bow. Never to be used against lesser enemies or by lesser warriors, the Pashupatastra is capable of destroying creation and vanquishing all beings. Pashupatastra is the most destructive, powerful, irresistible weapon of all the weapons mentioned in the Hindu mythology. In ramayana, Indrajeet, Rama and Lakshmana possessed knowledge of pashupatastra. In mahabharata, parshurama, Karna, Drona and Arjuna possessed Pashupatastra

In the Mahabharata Arjuna obtained this weapon from Lord Shiva.

A Narrative from Kisari Mohan Ganguli's translation of Mahabharat regarding the power of Pashupatastra:

O thou of mighty arms, that weapon (Pashupatastra) is superior to the Brahma, the Narayana, the Indra, the Agneya, and the Varuna weapons. Verily, it is capable of neutralizing every other weapon in the creation. It was with that weapon that the illustrious Mahadeva had in days of yore, burnt and consumed in a moment the triple city of the Asuras. With the greatest ease, Mahadeva, using that single arrow, achieved that feat. That weapon, shot by Mahadeva's arms, can, without doubt consume in half the time taken up by a twinkling of the eyes the entire creation with all its mobile and immobile creatures. In the creation there is no being including even the deities, that are incapable of being slain by that weapon.

In the most authentic translation of Mahabharata by BORI institute confirmed that Karna was also the wielder of pashupatastra. The confession by lord krishna in Karna parv, section 37

According to ved vyass mahabharata, karna never used mighty Pashupatastra against any warrior Vasavi shakti never missed its target can kill anyone except Trinity.Vasavi shakti can warp Time & Space as well.