Scavenged from the Wonderland of Rebirth: Artificial Memorial of Perfection

And to continue my spree:
Melissa Malakai: as stated many times before, the personification of the sins, fears, and doubts of a 'pure' maiden, who I will now name as the mostly-OC Eri Kunikai.
Now, such personifications - hereafter referred to as Doppels - tend to have appearances and abilities similar to those they are made from (with one or two exceptions). They tend to be rather delusional and insane when created (once again, with one or two exceptions). They are also able to die twice, with the first death restoring their sanity. This shouldn't be much of a problem.
Shouldn't be.
So of course some kind of extraspatial entity with a perverse sense of humor gave Malakai the most broken power in my internal canon: Anti-Magic.
In said internal canon, Anti-Magic allows one to recognize, reappropriate, counter, and seal the magic and abilities of those who oppose them. This ability is so broken, only five people (technically six, but technicalities are hard to explain) are chosen as candidates, and only four could actually use the power per alternate Verse. These people were chosen due to particular 'aspects' of their being that contradicted other traits of their existences.

One who sealed off their memory to avoid becoming a weapon of war - Evelyn.
One created by evil personified, but through loving their target was redeemed - Jessica.
One who not only bore the eternal torture of Jigoku, but had learnt that their soul, their memories, their existence, were transplanted into the body of an innocent person - Eri.
One who bore witness to the slaughter of the above candidate, and was doomed to shoulder the maddening knowledge of their every death until the end of memory of dying - Melissa.
One who suffered countless sorrows at a young age, offed by the right person, then was offered a wish at exactly the right moment to send all of existence spiralling into endless destruction, all for childish reasons - kuni.
One who was created to replicate a great power, but due to the laws of the Verse, was forced to replicate another great power, which still violates natural laws; thus the beckoning of death each time they leave the faux-sanctum of Ascended Memorized Phantasm - Luv.

As noted both above and in previous posts, Melissa's not exactly a saint, especially in mind. With the memories of the greatest torture known to man, she finds relief only in replicating those tortures onto others.
INverse: Melissa commandeers the Annihilator Factory, which spews out mechanical creations that crave only destruction. After invading *redacted*, she is fought and defeated by a group of heroes, which incidentally include the one she was created from: Eri Kunikai. Attempting to live on by sending her soul to Eri via kiss, she finds her lips literally sealed, right before having her bowels voided the perma-death way.

REverse: Melissa is confronted in the Interstice of the Dimension, a castle that exists between dimensions (obviously). She is killed off, only to revive afterward. Becoming the Co-Dragon to Roe Kunikai, her personality is fleshed out to be a remorseless psychopath. Enslaving an entire civilization, cursing them all with immortality, then subjecting them to eternal torture, whether with healing magic applied at exactly the wrong time, medieval torture devices, modern torture techniques... Murdering anyone, be they innocent or not, child or adult, with neither provocation nor reason... Inciting and subtly (for her) manipulating others to spread chaos, fear, and death all for ther entertainment... There is nothing she would not do.
This would prove her downfall, of course. Roe Kunikai, having caught on to her antics, strips her of her title and threatens her to leave the Afterlife. Enraged by this, she attempts to kill Jane Haart and Eri Kunikai just to deny him his 'long-awaited final battle'. She fails spectacularly, and while recovering, she is ambushed by Roe and has her power of Anti-Magic sealed, just in time for her to be cursed with immortality, impaled by a slab of Adamantite covered in spikes, have flesh-dissolving acid poured on her, then crushed by another slab of spiked Adamantite, then forcilby revived in that position over and over...
That's a nice way to effectively kill someone off, right?

SUBverse: taking place during the time of REverse, with the same character via a machine that transports one's consciousness... Well, imagine that little paragraph of crimes noted above.
Now imagine that she gets away with it. Mostly. Darn dreams making the Boundary of Dream and Reality seem nonexistant.

Random time:
Thankfully, with kuni, Shinryu, and especially Roe around, her attempts to incite anarchy are ignored/fall flat/fail completely.
Of course, the stigma of being the Anti-Mage with sanity-loss has finally manifested in odd comments that may involve murder, amoral acts, and mushrooms. What is love~ Baby don't hurt me~ Don't hurt me~ No more~
Um. That was her, I swear.
Rejoice, BL! Melissa Malakai is killed off for real!

Theme music just cuz:
Annihilator Factory (stage theme 1)
Termination (fight theme 1)
Indiscriminate Murder is Counter-Productive (stage theme 2)
Termination (Origin remix) (fight theme 2)