For the millions of players who inhabited NCsoft’s legendary MMORPG Aion: The Tower of Eternity (released 2009), the phrase "Aion Octopus" evokes immediate, visceral terror. Officially, the creature is known as (or the Aetheric Octopus in later patches), but the community universally dubbed it "The Octopus."
Assuming you're referring to the octopus in the context of the Aion MMORPG, here's a guide: aion octopus