I am starting my second campaign soon and I want to play a sorcerer. What are your craziest, most edgy, or most unique sorcerer ideas/backstories?

A general breakdown on all the subclasses:

• Abberant Mind:
  • A sorcerer with origins related to the far realm, astral plane, and other psionic related stuff.
  • Abilities are mostly subtle, with extra divination and enchantment spells + body mutations to grant bonuses. Not as offensive.
  • Great for playing a creepy or regal type character. Fun backstories.
• Clockwork Soul:
  • A sorcerer that has abilities related to order. Mechanus is usually the go to origin.
  • Abilities are used to cancel out any advantage or disadvantage, extra abjuration and transmutation spells + shields and fixing stuff. One of the best support sorcerers.
  • Amazing for playing cool, resolved characters with alignments either in, or opposite to lawful neutral.
• Divine Soul
  • A sorcerer touched by the devine. Good, bad, law, or chaos is yours to choose!
  • Abilities are good for warding. Knows the cleric spell list, and gains flight. Tanky sorcerers.
  • Fun to play if you want to be blessed by a demigod. How will you handle your destiny?
• Draconic Bloodline
  • A sorcerer related to a dragon (of almost any type and allignment). A good damage subclass that can be flavored as an elemental!
  • Abilities give you AC and HP. Extra damage and resistance to elemental spells, Flight, and fear!
  • A good genaric sorcerer. One of the most simple, and you can really tie in fun dragon NPC family members.
• Shadow Magic
  • A sorcerer related to the shadowfell and undead. 
  • Abilities include sight in darkness, shadow teleportation, dark doggy, and hard to kill. Support based.
  • E d g y. But can have a lot of depth. 
• Storm Sorcery
  • A sorcerer related to storms & sea. Related to air elementals, etc.
  • Abilities involve movement, extra damage, and weather control. Punish enemies for attacking you.
  • Great for a sea based campaign. 
• Wild Magic Sorcerers
  • A sorcerer connected to limbo, or utter chaos.
  • Abilities include bending luck with advantage/disadvantage, bonus/hinderance to saves, and of course, randomness.
  • Like stated with the law sorcerer, it is great to play with the same or opposite allignment.

General sorcery roots. Most fall under these catagories:

• Direct Ancestor.
  • One of the most common of sorcerer origins.
  • A parent or family member that is a monster that granted you power. Can be generational, random, or direct.
  • Dragon Mom, Angel Father, Etc.
  • Great for developing NPCs revolving around your character, giving them depth.
• Exposure to energies.
  • Another common sorcerer origin.
  • You fell into another plane, saw an event, etc. Usually on accident.
  • Vision of the far realm, momentary existance in limbo or mechanus, portal to the shadowfell, or a science experiment.
  • Good for a good old accidental sorcery. Who did you meet? What was the significance of the event? Did you seek this out?
• Blessings & Curses
  • The third most common sorcerer origin.
  • Your power was granted as a boon from another being (Not a pact. A gift with no servitude) or as a punishment granting you pain.
  • A baby chosen by a goddess or demon, a sailor cursed by the sea.
  • Good for determining personality. Do you want to prove your worth as a blessed? Hate your curse? Consider yourself superior?

This is just to spark your imagination. 

thanks