Well, now that is quite a messed up thread. Lemme join in !
Iku :Gently wraps her shawl on her opponent’s head, then proceeds to electrocute her opponent with very high voltage. Her opponent’ll scream and shake like mad, then blood and other bodily fluids’ll start leaking from every hole from her opponent’s body. She’ll finally take back her shawl with a force powerful enough to rip her opponent’s head !
Kokoro :Force a mask on her opponent, who’ll start screaming and panicking like crazy. Kokoro then’ll take back the mask, ripping her opponent’s face along !
Nitori :Send a long, mechanical arm from her bag into her opponent’s ***hole, then rips out the shirikodama !
Reimu :Throws volleys of sealing needles at her opponent, making a pincushion, then casually walk toward the poor bastard, puts an amulet on the head which then’ll kaboom, splurting red stuff everywhere !
Mokou :Grabs the necks of the infortunate person and starts cremating the opponent on the spot. She’ll somehow end up with the burnt up head skull of her opponent, which she’ll casually toss up, while casually walking away !
Tenshi :Drops a massive keystone on her opponent. The dude’s lower body parts end up totally crushed, making running away impossible. Tenshi then proceeds to fire her "Sky of Scarlet Perception of All Humankind" at point blank range, letting nothing but the SFX and her opponent’s scream be heard !
Ran :Jumps on her opponent’s head, then starts spinning at an ungodly fast speed while holding the head with her feet. She then proceeds to casually kick her opponent’s head up the skies as the body falls on its knees !
Yukari :Push her opponent into a gap : her opponent’ll suddenly appear on, yes you guessed it, a railway. Countless hands then pop up from the gap and hold her opponent, who can’t do anything else but scream and watch the train that’s coming at high speed ! Oh btw… the opponent’s whole body length is on the rail…
Suika :“Disintegrates”, and enters her opponent’s body… she then’ll start hitting her opponent violently (well, that’s a given), then kicks the spine along with her opponent’s back away !
Yuugi :Punches her opponent’s belly first, wasting all of them internal organs with everything this implies ; punches her opponent’s face next, sending the head in a long vacation ; then does a final punch so violent it actually blows her whole opponent’s body to smithereens, with limbs, organs and redness painting the ground for a respectable distance !
Byakuren :She is too nice for this kind of stuff, so she’ll just give the victims a nice burial.
Miko :Wraps her opponent in her cape : her adversary’ll end in some alternate dimension, then dozens of golden blades that appeared out of nowhere gets propulsed through her opponents body, over and over. Miko then’ll swing her cape, throwing all these disgusting stuff outside ! Oh btw… she comes totally clean out of this.
Shinmyoumaru :Throws her mallet up, she then rides on her bowl and stab her opponent with countless needles, preferably on sensible places like the eyes, the an oversized malled’ll crush her opponent to paste !
Patchouli :With her metal element, she throws a metal gear that keeps spinning at ridiculous speed on the ground then she creates chains that’ll drags her opponent towards the saw-like gear ! Oh btw… everything happens
slowly…
Cirno :Freezes her opponent, kick that newly made work of art wich’ll shatter on the groung ! Obviously, she can’t think of an elaborate fatality
Kanako :Snaps fingers, then a giant onbashira’ll fall on her opponent. A few hundred others keeps falling, making a venerable graveyard for the insolent fool who dared defy the gods’s authority !
Keine :Headbutt so hard her opponent’s future descendant’ll certainly feel it, except aforementioned opponent’s head skull’ll get smashed, not leaving an opportunity to reproduce !
Alice :Binds her opponent’s limbs with magical threads, regardless of canon for fatality’s sake : she makes this newly made puppet do impossible poses that end up crushing the bones and dislocating the joints, then she’ll slice her opponent with these same threads, regardless of canon for fatality’s sake !
Also, obligatory panda video to compensate for these nasty stuff. This violent world need some tenderness :
https://www.youtube.com/watch?v=9BYoJu13F6E