Android No. 21 (LimitBreaker)

Android 21 was the former wife of Dr. Gero and mother of Gebo until she had died due to unknown causes and revived as an Android by Dr. Gero's Super Computer some time in Age 779. She is also the founder of the LimitBreaker Project, a plan guised as a way to help Yurmister's Ultimate Goal but in actually a plan devised to stop him. Whilst in control, she acts like a kind and motherly woman to her creations, despite the fact that she had "missed out on adolescence". Her intellect is said to rival if not surpass Dr. Gero's at his prime.

Background
At some point in an unknown timeline, after separating her personalities into two separate beings, she and the Z-Fighters battled against her evil self. Ultimately, the Z-Fighters were all killed but Android 21 made the decision to re-merge with her evil self to try and prevent her from killing anymore people. She succeeded but knew it wouldn't be long until her appetite goes out of control so she makes the decision to build a machine capable enough to stop her from leaving so that she can't do anymore damage. The machine is built and it does prevent her from escaping, with the cost of zero interaction to the outside world at all. During her time on absolute isolation, she would think about and hypothesise about various experiments so that if anybody finds her (presumably dead) her research would be passed on.

After spending what felt like an eternity, she is freed by Yurmister with claims that he could get rid of her seemingly insatiable lust for hunger. Without hesitation, she joined Yurmister thus becoming the 6th Disciple. After some time though, she began to realise that Yurmister was taking advantage of her and at that point decided to turn on him in secret. Her plan dubbed "The LimitBreaker Project" was to create powerful enough fighters to defeat all the other disciples, allowing her to wish Yurmister out of existence using the Super Dragon Balls as Yurmister had explicitly prevented them from using the Dragon Balls in any form.

All together, she had created/modified 151 fighters to use to make her plan a reality. Out of those 151, their were 6 viable candidates to enact her plan, as well as herself and Nisemo. She ultimately chose Ayana to be the main fighter/leader, as she was one of the only inmates to not try and escape on the 13th Escape whilst also having the latent potential to realise her ambitions.

Power
Before even attaining her new form, Android 21's strength was stronger than the Z-Fighters plus Frieza & Cell combined meaning she truly is a terrifying force of nature. After unleashing her ultimate form, it required the combined effort of SSGSSE Tarro and Ultimate Tadzio to take her down.

Transformations

 * Transformed/Majin State
 * Her true form according to most
 * Transformed; Cell absorbed
 * After eating Cell, she is able to transform and achieve greater power
 * Nightmarish Amalgamation Form
 * Obtained after being given a small amount of energy from the Hands of Creation

Super Attacks

 * Hor d'Oeuvre Stab
 * Connoisseur Cut
 * Total Detonation Ball
 * Majin Kamehameha
 * Solar Flare
 * Photon Wave
 * Photon Swipe
 * Sweet Tooth
 * Excellent Full Course
 * Appetizing Rush
 * Savoury Slicer
 * Total Evasion
 * Instant Transmission

Special Moves

 * Nightmare Incantations
 * Danger Time
 * Absolute Release Ball
 * Amuse-bouche Assault
 * Mignardise Madness
 * Horrifying Hunger

Trivia

 * If Android 21 had a theme it would be Hero Battle from Dragon Ball FighterZ
 * Because of the nature of her biology, her constant need to satiate her hunger had caused her to develop a secondary, evil personality which is a sadistic and power-hungry sociopath
 * Her favourite sweet is macrons
 * Her true intentions to double-cross Yurmister weren't out of a desire to steal the power for herself but as an act of good will on her part. Even her evil personality could see that Yurmister's plan was something she couldn't take part in


 * She has the lowest kill count of all the major villains, being (ironically) 21 people
 * More specifically: Goku, Vegeta, Gohan, Gotenks (counts as 2), Piccolo, Android No. 16, Android No. 17, Android No. 18, Tien, Krillin, Yamcha, Frieza, Cell, Majin Buu, Ginyu, Recoome, Burter, Jeice, Guldo and Nappa
 * Any other deaths in the RR Secret Facility were either not directly caused by her or were an unintended consequence
 * Ironically, despite calling Android 21 a monster amongst other things, Prima has actually killed more people than Android 21


 * She sees every subject of hers a surrogate child, acting motherly towards them (whilst in control)