Negative Frieza
Negative Frieza is a form discovered by Frieza after training in Hell for some time and absorbing negative energies in Hell. The first instance Frieza came across Negative energy was when he first died against Future Trunks in hell he absorbed some negative energy causing him to lose control and go on a rampage killing a few demons but also hurting himself. Since then Frieza is a lot more experienced with negative energies being able to control himself and absorbing some so he can transform whenever he wants.
Appearance:
The form replaces the purple gems (?) on Frieza's body with light green gems. Frieza's eyes turn black and his pupils and irises turning completely light green. The scars on him is caused by himself not by any external factors or other people in Hell.
Origin/Story of Negative Frieza:
Frieza was just defeated by Future Trunks and now was in front of King Yemma. King Yemma of course sends Frieza to Hell and when he plummets down he flies through a weird green Ki and boom black. A few minutes later Frieza finally sees something and he sees tons of demons dead and also himself in a new form beyond his full power before going back to base.
Frieza knows He NEEDS the form so that's why he began to train with Negative Ki until he could at least have some control over his Negative form. When Cell comes Frieza immediately beats him with relative ease in fact even with his Super Perfect form and Cell Juniors. Frieza doesn't kill Cell since they are already dead but he would if they were alive.
Some years pass and Frieza develops more variations of his Negative form. Eventually Frieza is revived by the Frieza force and the first thing he does is try to transform into Negative Frieza but... He can't?, Strange so he lays off for now and absorbs the Intel from his soldiers. Looks like he needs something stronger to combat those 2 monkeys since they evolved.
Maybe he needs a new form...
Maybe he needs something...
Something...
Golden.
Form:
Negative Frieza gains a 250x - 1000x multiplier than his base state. The multipliers are 250x (Base Negative Frieza), 500x (Controlled Negative Frieza), 750x (Enraged Negative Frieza) and 1000x (Beserk Negative Frieza)
Abilities:
In this form Frieza gains a couple of new abilities
Negative Ki Attacks: Frieza's Ki becomes negative and his Ki attacks does so too. Each attack is now more powerful than it's regular Ki counterpart now having the effect to have a chance to make whoever gets hit with the attack go Beserk losing control of themselves however this only works if the opponent doesn't experience with negative Ki, or isn't using negative Ki.
Ki Detection Immunity: In this form anyone with different Ki can't sense Frieza through Ki detection. Frieza using Ki detection. The only way someone can detect Frieza in his Negative Form/s if they also have negative ki/using negative Ki.
Increased Power and Speed: There's a massive increase in Power and Speed for Negative Frieza. Duh but unlike the usual power and speed increase with forms it retains even if Frieza goes back to base. And the increased power and speed stacks.
Other Variants:
Controlled Negative Frieza: Frieza is 500x more powerful than his base as well as being more controlled of his emotions. Taunts, insults and mockery (most of the time) don't anger or faze Frieza unlike in his normal self. There is no notable weaknesses for this variant.
Enraged Negative Frieza: If Frieza in his Negative form willingly enrages himself or if a taunt, insult or mockery pushes him in his Negative form to become enraged he'll enter this form. Frieza becomes 750x more powerful than his base and he is faster and his attacks are more destructive. The notable weakness here is Frieza loses some control and can be a catalyst for sloppy fighting.
Beserk Negative Frieza: If Frieza is in Negative form specifically the Enraged variant and he absorbs EVEN MORE negative Ki he goes into this state or in very rare cases if Frieza absorbs too much negative energy if he's lucky he'll go into this state. Frieza is 1000x more powerful than his base his attacks hit even harder and are more destructive. There's 2 notable weaknesses here. 1. Frieza loses total control and starts fighting like a monkey (he becomes what he hates), 2. He stops using Ki attacks and strategy.
Weaknesses:
1: If Frieza absorbs too much negative energy or more than his body and mind can handle he'll become Beserk while more powerful lacks strategy and Ki attacks.
2: Negative Frieza (no variant) is a lot more arrogant and cocky than his normal self which is a hubris than most of the time leads to his downfall.
3: Frieza can only use Negative Ki if he's dead or in Hell. That's why when he got revived he immediately discarded Negative Frieza due to the weakness and also the fact he saw Goku and Vegeta in super saiyan god.
4: Negative Ki is weaker against Godly beings and people with God Ki.