Fargo's Mod/Deviantt

Deviantt is an NPC vendor that will spawn once the following conditions are met:
 * There is an empty house.
 * A rare enemy has been defeated or the world is in.

If the world is in Eternity Mode, Deviantt initially provides an additional Receive Gift option. When clicked, Deviantt will provide the player with the following items:

Wormhole Potions are only given in multiplayer. These gifts can only be received once per character. If the Magic Storage Mod is enabled and the following items have not been given yet in the current world, she will additionally give:

After receiving gifts, the option is replaced with a Help option that gives various tips on new mechanics and advice on defeating bosses.

When threatened by enemies, she will defend herself by throwing a homing fake heart. If Moon Lord has been defeated, she will instead cast a barrage of homing fake hearts.

Items sold
Due to the ability of to spawn enemies before they would normally be available, many items require defeating both the relevant enemy and a certain boss or invasion to unlock.

Names
Deviantt can have the following names:
 * Akira
 * Remi
 * Bloom
 * Yuuki
 * Seira
 * Koi
 * Elly
 * Lori
 * Calius
 * Teri

Quotes

 * "I'll have you know I'm over a hundred Fargo years old! Don't ask me how long a Fargo year is."
 * "I might be able to afford a taller body if you keep buying!"
 * "Where's that screm cat?"
 * "[Name of Player]! I saw something rodent-y just now! You don't have a hamster infestation, right? Right!?"
 * "You're the Terrarian? Honestly, I was expecting someone a little... taller."
 * "Don't look at me like that! The only thing I deviated from is my humanity."
 * "Rip and tear and buy from me for more things to rip and tear!"
 * "What's a chee-bee doe-goe?"
 * "Wait a second. Are you sure this house isn't what they call 'prison?'"
 * "Deviantt has awoken! Quick, give her all your money to defeat her!"
 * "One day I'll sell a summon for myself! ...Just kidding."
 * "Hmm, I can tell! You've killed a lot, but you haven't killed enough!"
 * "Why the extra letter, you ask? Only the strongest sibling is allowed to remove their own!"
 * "The more rare things you kill, the more stuff I sell! simple, right?"

When is present:
 * "Can you tell [Name of Mutant] to put some clothes on?"
 * "One day, I'll sell a summon for myself! ...Just kidding. That'd be [Name of Mutant]'s job."
 * "[Name of Mutant] is here! That's my big brother!"

When is present:
 * "[Name of Abominationn] is here! That's my big-but-not-biggest brother!"

When is present:
 * "What's that? You want to fight [Name of Lumberjack]? ...even I know better than to try."

When Angler is present:
 * "Have you ever considered throwing [Name of Angler] back where you found him?"

When Eternity Mode is activated:
 * "Embrace suffering... and while you're at it, embrace another purchase!"

During a Blood Moon:
 * "The blood moon's effects? I'm not human anymore, so nope!"

Trivia

 * The name "Teri" is a reference to the mod developer, Terry N. Muse.
 * The name "Calius" is a reference to Deviantt's spriter and mod developer, caligulasAquarium.
 * The names "Koi", "Elly", and "Remi" are references to various characters from the  series.
 * The name "Artt" is a reference to the website DeviantArt.
 * The quote 'Rip and Tear' is a reference to the meme of the same name originating from the  series.
 * The quote 'You're the Terrarian?' is a reference to a quote from Merlin from the Netflix series Trollhunters
 * The Deviantt not being affected by the Blood Moon is a reference to how other female NPCs (Except the Party Girl) become verbally hostile when talking to the player.
 * The quote about how only the strongest sibling can remove the extra letter from their name is a reference to the Mutant NPC, who is stated to be the Deviantt's elder brother, and is the hardest boss to fight in the mod.