Truffle

The Truffle is a Hardmode NPC that sells the Autohammer, a crafting station necessary for crafting Shroomite Bars, along with other various mushroom-themed items. To get the Truffle to move in, there must be a vacant House in (or near) a surface Mushroom Biome during Hardmode. Surface Mushroom biomes must be created manually by a player, and do not generate naturally. 100 blocks of Mushroom Grass and Mushroom Plants are required.

When threatened by enemies, the Truffle will release mushroom spores, which hover in air and deal damage.

Names
The Truffle may have any of the following names:

Quotes

 * "There's been such a huge rumor that's being spread about me, 'if you can't beat him, eat him!'"
 * "Everyone in this town feels a bit off. I woke up to [the clothier's name] chewing on my foot last night." (Only if Clothier is present)
 * "As if living underground wasn't bad enough, jerks like you come in while I'm sleeping and steal my children."
 * "You haven't seen any pigs around here have you? My brother lost his leg to one." (reference to the historical use of pigs to locate truffles growing underground)
 * "I tried to lick myself the other day to see what the big deal was, everything started glowing blue."
 * "Why does [Name of Witch Doctor] keep trying to to cram me into a cauldron?" (Only if Witch Doctor is present)
 * "Between you and me, [Name of Dryad] is the only one I trust. She is the only one here who hasn't tried to eat me or use me in a potion." (Only if Dryad is present)
 * "Everytime I see the color blue, it makes me depressed and lazy."
 * "I don't know the 'Truffle Shuffle', so stop asking!" (Reference to "The Goonies" movie.)

Trivia

 * All of his names are types of mushroom or toadstool.