[quote=CirusArvennicus]
No, it must specifically be a body part. Also, weapons can't use their soul wavelength in combat.So, his arm is favored? Alright.
[/quote]

Autonomous weapons can. Justin Law and Giriko did, a lot, in the canon series.
Yeah, his arm is a good, reasonable sacrifice.

[quote=chukklehed]
Who is this Raymond you speak of. I wish to meet him, he sounds like a cool guy.
[/quote]

He's a cool cat. Not a cool guy, a cool cat.