Octopus (オクトパス, Okutopasu) is a Weapon ÄRM consisting of eight bladed, tentacles which are capable of regenerating from damage.
History[]
It is owned by Ian and is a stronger version of his previous Weapon ÄRM, Python Whip.
Later on, Ian upgrades this ÄRM into a more powerful form, the Octopus II which is capable of releasing whips tipped with various types of bladed weapons fastened onto the ends of each tentacle.