Guru Sengé Dradrok 獅子吼聲上師

Guru Sengé Dradok

Guru Sengé Dradrok (Tib. གུ་རུ་སེང་གེ་སྒྲ་སྒྲོག་, Wyl. gu ru seng ge sgra sgrogs; Eng. 'The Lion's Roar') — one of the Eight Manifestations of Guru Rinpoche.

From A Great Treasure of Blessings, page 30:

Guru Rinpoche challenged and defeated five hundred upholders of wrong views in debate at Bodhgaya. He reversed their magic with the aid of a wrathful mantra given him by the lion-faced dakini Marajita.

He is known as Sengé Dradok, 'The Lion's Roar'.