Upon being shown Tank's magic chain shirt, Gribble's demeanor becomes briskly professional again. "Well! Tha's not a bad piece, that. Let me see..." He hefts the shirt, feeling the weave with his thick fingers. He sniffs it, and even licks it rather daintily, before making a face and giving Tank a dirty look. Presently he sets it down and addresses you. "Aye, magic, right enough. Now. Ye've a choice t'make. I can do some non-magic tests on it, hit it with hammers and fire and suchlike and see what happens. I'll do that fer ye at no charge, since ye be customers." He leans close and whispers behind a hairy hand, "Truth is, I'll get me apprentice t'do it. He needs the practice, aye!" He continues in more normal tones, "That'll tell ye what kind of enhanced protection it has. What it won't tell ye is if there be any kind o' curse on it. Now, I won't be askin' ye where ye picked up this wee bauble, but unless ye can trust yer source, I'd recommend ye spend the cash fer a proper magical look-see. I can do that fer ye too, but the supplies fer the spell ain't cheap, and I'd ask ye t'cover those costs. 'Twould be a hundred gold, even. It's yer neck, so it's yer choice, eh?"
On being shown the medallion, his thick brows cluster in disapproval. He waves the medallion away without examining it closely. "Put that thing away. There's no magic to it, it's from one o' those Grodlek filth. Have ye nae seen more of those around here? The Grodleks are a bunch of duergar that camp nearby. Slavers; nasty folks. Umraecyl don't let 'em operate out of the bazaar, but they bring their wares here for sale from time to time. You take this off of one of them? Well done, I say, but watch yer back. They don't take kindly to opposition."
ooc: I hope I'm not forgetting some other medallion...