Mosreh the Exile

Dialogue

 * "I'm searching for 5 Ebon Spider Legs. I can offer you one of the following items in exchange.  Can you help me?"

If you're a Ritualist, Assassin, Dervish, or Paragon, he says instead:
 * "Hello! I've been collecting Ebon Spider Legs, but I have nothing left to trade for them. Why don't you try selling to an outfitter instead?"