D.E.N.T.

D.E.N.T. is an auctioneer found in the Shrine of Two Moons, only usable by engineers.

It's unknown what his name stands for, though it could be Designated Entity for Negotiating Trade.

Quotes
Hello, . My services as an auctioneer are available to those with skill in engineering. Sadly, you have none. Please leave.
 * Gossip

Trivia

 * D.E.N.T. and H.A.R.V.E.Y. are a reference to (aka Two-Face) from Batman.