Talk:Absolute Death Inducement/@comment-24053170-20160909040412

While the First Blade can potentially kill anything in existence, its power is limited to working only when the holder has the Mark of Cain (otherwise its nothing but a piece of bone in the shape of a blade). And its unable to harm the Darkness who is the source of the mark either.

So I am not sure if its truly fits the definition of this power.