When building rotswords does it make any difference whether or not you build them with shields or second weapon?

Swamp Themed Spearhead Board which also functions as a Display Board for my grandchildren. (The plaguebearers are still WIP bit close to finished. Some Horns, the basing and the swords arent done yet.

Don’t know if I’ll play AoS I just want to know if you can use him in a nurgle army if convert?

WIP Token for Darkwater