Collects Ka-Zar #11, Guardians Of the Galaxy (2008) #25, Thor (1998) #25, Secret Wars (2016) #8, Annihilation #4. Thanos is the Mad Titan and the Avengers greatest threat. He''s defeated every hero you can name. Thanos Wins. But not always. See some of the Marvel heroes'' greatest victories over Thanos and his unimaginable might. From his role in the Annihilation wave to a one-on-one with Ka-Zar, witness the most titanic Thanos battles!