This is the easiest way to defeat The Hydra (Cult of Kosmos: Gods of the Aagean Sea final boss). If you are a low level or have a weak ship, this walkthrough will show you how to defeat The Hydra and unlock the full Pirate Set armour in Assassin's Creed Odyssey. I played this on Hard Mode and was only level 32, but The Hydra was level 50. #AssassinsCreed #AssassinsCreedOdyssey