Dyvers has a seedy underbelly that comes from all those cultists of Elemental Evil who fled after the temple fell and I’ve always assumed that they brought some pretty crazy drugs with them when they fled. Things like “Wizard’s Ear,” “Elemental Twist,” and “Zug Shrooms.”
Dragons Never Forget 
You should always use Detect Magic on your Wizard’s Ear to make sure you didn’t get Wizards Sleeve. The latter initially causes speckled flatulence before complete relaxation of both posterior sphincters. Avoid.
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