The recent chapters are dark. Love it.
That's one way to keep things balanced. Give Bella a new power (minor physical shield and flame retardation) but take away her lover and best friend (incidentally the two most powerful witches she has at her disposal). Oh, and while you're at it have the enemy recruit her greatest brute-force allies to their side. Maybe have her brother in law try to kill her. Perhaps a good way to set up a "rationalists don't always win!" moral. :)
I wonder if Bella may not be able to make use of Jasper. She should have a decent chance to defeat him in combat. She should be slightly stronger than him (residual newborn strength vs carnivore) while a whole heap more strategically competent. Apart from being somewhat more dominated by bloodlust he is also barely sane and his combat advantage from witchcraft is missing. Their current injuries are comparable (torn off arm vs 'left his hand back there somewhere').
Assuming she can tear him apart she could possibly send him against the Volturi. Talk to his disembodied head and remind him that he must hate the Volturi almost as much as he hates her and that killing all of them may be as pleasurable as killing just one of her. That and remind him that he'll never be able to find her anyway.
Leave his body in a great vat of fresh blood, with his neck attached remotely to his head via strained elastic. Have his head suspended above the vat ready to be released by a call from a mobile phone. Leave him in Italy. Leave a vest loaded up with a (literal) ton of explosives, napalm and an 'on release' trigger. And a map saying 'you are here' and 'them'.
I wouldn't risk it myself. There is a chance that he will just tell them Bella is alive. He seems stupid enough to do something that will mostly hurt the rest of his adoptive family and not Bella at all.
If I actually was in Bella's shoes I'd probably just kill Jasper. Stop pretending I'm a boy scout earning pocket money and start stealing cash. Like whole ATMs, that sort of thing. Then I'd move to Italy and start preparing to kill the Volturi. Rigging all the surrounding area with explosives, creating walls of fire. Firebombs of a suitable weight and with suitable payloads that I could lob them inside said ring of fire. That sort of thing. Witchcraft is overrated. :)
This is Part 2 of the discussion of Alicorn's Twilight fanfic Luminosity.
LATE BREAKING EDIT: Part 3 exists now, so new comment threads should be started there rather than here.
In the vein of the Harry Potter and the Methods of Rationality discussion threads this is the place to discuss anything relating to Alicorn's Twilight fanfic Luminosity. The fanfic is also archived on Alicorn's own website.
Here is Part 1 of the discussion. Previous discussion is hidden so deeply within the first Methods of Rationality thread that it's difficult to find even if you already know it exists.
Similar to how Eliezer's fanfic popularizes material from his sequences Alicorn is using the insights from her Luminosity sequence.
The fic is really really good but there is a twist part way through that makes the fic even more worth reading than it already was, but that makes it hard to talk about because to even ask if someone is twist-aware with any specific hints is difficult. The twist is in the latter half of the story. If you are certainly not post-twist and want to save the surprise, then you should stop reading here and fall back to Part 1 discussion or to the fic itself.
If you think you're pretty sure you are post-twist and are safe to read the rest of this, try reading this rot13'ed hint and see if what you've read matches this high level description of the twist...
Rqjneq unf qvfpbirerq gur frperg gung Vfnoryyn jnf xrrcvat sebz uvz "sbe uvf bja tbbq" bhg bs srne bs Neb ernqvat Rqjneq'f zvaq. Va gur nsgrezngu, fbzrguvat unf punatrq nobhg gurve eryngvbafuvc gung znl unir pnhfrq lbh gb pel sbe n juvyr, naq juvpu znlor urycf gb rzbgvbanyyl qevir ubzr gur pbzovarq zrffntr bs YJ'f negvpyrf nobhg "fbzrguvat gb cebgrpg" naq "ernfba nf n zrzrgvp vzzhar qvfbeqre" naq gur jnl gurl pna fvzhygnarbhfyl nccyl gb crbcyr jub unir abguvat zber va gur jbeyq guna fbzr fvatyr crefba jub gurl ybir.
If the answer to the hint is obvious, then just to be sure that there is not a double illusion of transparency at work, here is the cutoff point spelled out explicitly:
Gur phgbss cbvag sbe cbfgvat urer vf gung lbh unir ernq hc gb puncgre svsgl svir (va gur snasvpgvba irefvba) be puncgre gjragl rvtug ba Nyvpbea'f jrofvgr jurer Rqjneq jnf cebonoyl vapvarengrq, Vfnoryyn fheivirf na nggrzcgrq vapvarengvba, naq fur unf gb ortha gb jbex bhg jung gb qb jvgu gur jerpxntr bs gur erfg bs ure "rgreany" yvsr.