|Interfectum Malus: Ōkami|
|Debut||BlazBlue: Calamity Trigger|
Interfectum Malus: Ōkami has the shape of a nodachi, and this weapon was held by a Six Heroes member; Hakumen.
According to Continuum Shift, it is made of a metal that negates Ars Magus in a certain distance, explaining why Arakune can be killed by it in Calamity Trigger rather than regenerate after being hit by it. During the Teach Me, Miss Litchi! <Reloaded> episode, Ragna taunts Hakumen saying that it has yet to actually display its power.
As shown in Hakumen's story, he is also able to use Okami to directly slash dimensions, allowing him to view other parallel timelines or dimensions. However, it is not known if this is an ability of Okami itself, or Hakumen channeling the Power of Order through it.