Vaishnavastra (vaiṣṇavāstra)

The Vaishnavastra is an infallible weapon of Vishnu that cannot miss and cannot be countered, given by the god to a select few. Bhagadatta, the elephant king of Pragjyotisha, hurls it at Arjuna on the twelfth day of the war, and Krishna rises from the chariot seat and takes it on his own chest, where it becomes a garland of flowers. Arjuna protests that his charioteer has cheated him of a fair fight, and Krishna answers that the weapon was his own to reclaim.