Fun Fluff Characters

[Nagog]

What has been your favorite fluff for a character that you've seen, and how did their fluff come into play in a fun/interesting way? For example:

A support class who's support spells are represented by contracts for the supported to sign, ends up enslaving the souls of their party (inspired by TyGuy's thread on PvP contracts)
Buff/debuff sorcerer fluffed as a microbiologist who uses various viruses/bacteria to buff/debuff allies/enemies finds a bottle containing the parasite that causes Lycanthropy
Secret Agent who carries a gun made from alien tech (Rogue with MI for Fire Bolt and Burning Hands) accidentally contacts the aliens who created his weapon
Etc.

[Cicciograna]

A Gnome Monk/Bard with a theremin strapped on his back, playing it by fighting in the Drunken Master style.

[SpawnOfMorbo]

Did this in 3e, 4e, and 5e.

Barbarian who thinks he's a wizard or cleric.


Power Attack/Reckless Attack: Power Word Kill

Rage: Rage spell

Unarmored Defense: Mage Armor

Had a spell book that, irl, I used crayons to draw my spells in... Was a lot of naked women drawn like a little kid would.

My 3e DM just about died.