[quote=@Path]
<Snipped quote by Nimda>

Very rare, it does have a sister blade that someone has. 
*smiles and puts my hands on my hips*
A neat bit of info is that if you happen to go against that person it actually cancels the effects of the sister blade.
[/quote]

Huh.
*Turns it over within the sheath in my hand*
But what are the odds of that?