User blog comment:Saikou The Lewd King/Paradox list of AUs/@comment-26441687-20160522184341/@comment-24561308-20160523025638

Well, the Beserker we see is clearly fused with the Halo, and it has been mentioned it's Heinrich, not anyone else. So Heinrich DID fused with the Halo here. Also even if we don't have the halo, it was still a sword and was meant to be used that way, it wasn't an armor or anything.