I have one
do you have a spare rusted shield?
Hey :) yeah I have one, but... That story is kinda silly... I traded my Zamazenta against some guy's Zacian (for completing my pokédex of course ^_^) but he didn't have any interest in the rusty shield and didn't want to give his rusty sword either. I didn't care at that time to be honest. So yeah, now I'm sitting on a Zacian without a sword andon a shield without a Zamazenta. And because that was really silly I promised myself to hold on to that shield until I find someone who is willing to exchange it for a sword...
Long story sort: If that Coalossal doesn't come with a rusty old sword somewhere between his coals I unfortunately can't give out my rusty shield :( Is there anything else you would want?