Dead Mans blood simply doesn't sate their hunger, but they can drink it just fine. As for Silver, Allison's favorite little token is a Silver Cross from Zeke. She wears it all the time. So, "Vamptonite" is not going to work, as we can tell, the vampires here and there are not the same save an allergy to wood and the Sun. As for the fact of the bullets, We are again, assuming Same and Dean have the chance to fire(Granted, they probably do) but Allison has functioned after getting shot Six times point blank, Even going so far as to be another vampire in a fight. I Think she will be fine.
Okay, Dead Man's Blood won't be effective then. However, I can still see the silver bullets putting her down - wearing a silver cross without issue doesn't mean she's taking any silver bullet. And just because the vampires are different from Supernatural and Blood Of Eden, does not automatically grant her immunity to everything that weakens or kills a Supernatural vampire - that's nothing but substandard and insufficient logic. Vamptonite is a unique mixture of a "Leviathan's Additive 3.0" and human blood, which as a side effect is fatally toxic to a vampire. So evidently, Allison has no answer to the effects of this, since the mixture exists solely inside Supernatural and there's no way to prove her resistance - therefore, Vamptonite coated bullets are certain to silence her.
Even if you could say Allison won't be killed by it, she'll still be paralyzed at the very least - perfect opportunity for them to stake and/or behead her. So when either of the Winchesters get their shot on her (and they will, i'll be explaining Dean's aiming skills with firearms momentarily), she'll be either most likely dead, or at minimum she'll be out for the count - allowing the brothers to stake her, and go two on one against the apparent glass cannon, Sydney.
Despite the fact she has many spells that could give the Winchesters trouble, there's seemingly nothing to suggest she could use these before a bullet meets her skull. Although Sam has a fair shot, it's really Dean who has the more consistent and better feats that display his skill with guns - mainly due to the training he was under from John Winchester at a young age. It was said by Dean that at the age of seven John was teaching him to shoot targets, and he bullseyed every one of them. Anyway, while injured, Dean accurately shot Azazel (who to my knowledge was usually capable of bullet timing) through the heart:
He faced Elias Finch (the Phoenix) in a close duel and managed to fire about half a second before Elias could:
With a crossbow, Dean was able to shoot a vampire initially from an unnoticeable spot and another while on the move:
And Dean managed to pull his sidearm out while his sniper was stuck, and shot a shapeshifting dog before it reached him:
I may research more episodes for some extra feats to add, but I think this should somewhat cover Dean's accuracy skills, more or less. I know Allison is faster than the Winchesters, however she will eventually have to get close in order to slice them in half - and she's certainly not fast enough to escape their sight. When that happens, Dean pulls the trigger, and she's done for. Sydney will be easier, considering she has seemingly no durability or ability to react to a bullet. Once she's gone, they can both focus their attention on Allison and Dean will be able to shoot her - i'll explain Sam's main position on the fight later.
Holy oil must be ignited, not exactly giving you that kind of time. Besides, assuming you can Ignite it, Sydney can control Flames(Pyrokenisis, remember?)
From what you've said, Allison really isn't fast enough to stop them before they can ignite a bottle. Sydney would also need to be able to show how well she can control flames and while in battle too - but she shouldn't even be able to cast a spell before Sam shoots her (I should note, i'm basing the argument off of assumption that Dean is mainly focusing on Allison and Sam on Sydney, both will still be using teamwork together as well though).
It shows Hew completely decimating a large group of rabids, and then she ends up fighting a Large, Seven foot Goliath that was able to punch through cars. While things get dicey at first, she ends up beating it, showing speed, Durability, Healing factor and Yes, shes stronger than a Rabid.
Alright, she's a lot stronger than most of the beings Sam and Dean have faced. Still, her speed is not too considerably above the fast creatures the brothers face either and they have the right gear/weapons to land the killing blow on her since she needs to get close to attack, and that's when I see the Winchesters spraying Allison with the Vamptonite bullets - that will simply just kill or paralyze her. But if she proves to be too difficult, that's where another plan commences.
Since both brothers are willing to do almost anything, are aware of how to become a vampire and are able get their hands on vampire blood, Dean will lessen the physical gap between them and Allison by turning himself into a vampire as well. Perhaps he won't be as strong, as fast or as durable, but the gap will be significantly shortened either way. This is a good plan for Dean, considering as a vampire he took out a vampire's nest by himself:
Plus, both Dean and Sam are aware of the cure - so after battle Dean can simply rid himself of vampirism. As for Sam, he should also be able to get his hands on some demons and extract their blood - so he too can go into battle hopped up on power. He will get a powerful degree of telekinesis and be able to toss around Sydney & Allison if they prove to be a difficulty, he was able to do this to Lilith:
And logically, neither of them should be alive. But I wont argue that. What I will argue is the fact that None of them simply cut the Winchesters in half. Allison has completely cut through a Tire and I have shown plenty of passages with her cutting through bodies.
Yes, but Dean's skill with a weapon is good enough to fire and shoot her once she gets close - since that's really her only way of attacking. Sam should be able to assist Dean against Allison as well, he can telekinetically grab the katana and break it, or pin Allison to the ground.
If you believe by any standard the Cass would actually Hurt dean, then we would have a problem. But i see your point. He can take Punch...cool, not helpful, but cool. Again, not really helpful, but cool. Ignoring the fact that Lucifer was literally playing with him. He could have literally snapped his fingers, but its whateve.
This is mainly in regards to the above scenario if Allison loses her katana, and the plausible case of Dean becoming a vampire should add to his durability in a hand to hand fight against Allison, along with his superior fighting skill shown when he cleansed the vampire's nest.
I disagree. The fact that the were taking those beatings is proof enough. Also, you are still making the flawed assumption that what harms your Supernatural vampires will harm Allison. Nope.
Again though, this logic isn't good enough, if Allison doesn't have anything to suggest she could resist it - she can't.
Neither did it mention that she strained. The point is, in a single leap she jumped Twenty feet. the only thing it mentions( that i left out due to laziness) is the fact that she "was careful to avoid the spikes on the other end". you can't assume she didn't make the jump as casually. She did not I assume, but I did not state that. I said she casually jumped it. It was not hard. it was not a real effort. I believe that is the definition of casual. I only put in Kanins part to show that the trench was 20ft.
Since it didn't note anything on how good/easy/casual it was, yes, many assumptions can be made on either side.
Then you missed the passage i put in to show how fast Sarren is. the part where he blitzed a Master vampire and his Guards ring a bell? Being able to simply hit Sarren is a feat far and beyond anything the Winchesters have shown(to my knowledge)
It doesn't matter how fast Sarren is, because when she took the arm off of him, I didn't see it saying anywhere that he was using any significant speed.
I can understand that. I suppose. But besides the fact that Speed is inferred and she was able to Tag Sarren. She also once bested Kanin. Granted, she was freshly made and he was teaching her how to Handle her sword that she had just got, and was most likely going easy. It doesn't change the fact that it happened. I would give the passage, but it's in the first book that I put in storage. Take my word for it? If not them give me a week or so to get the book.
I'll take your word for it, though if he was going easy, it does change the variables of the feat against her favor. Besides, even if her speed proves to be a great issue against their odds of winning the battle - they're able to use the Rabbit's Foot. It's a cursed item that brings ridiculous luck to whoever possesses it, it allowed Dean to casually evade a bullet and he precisely lodged a pencil in a gun barrel too, among many other things. However, it is prone to getting lost from the owner, and if so their luck turns into bad. Sam and Dean are aware of this though, so they'll make sure to keep it close at all times.
It's a Teen Romance Novel. Not much to work with, but I will see what I can find. I know for a fact she was Trained By Ms Terwilliger to fight others. But only in aiming and shooting really.
Even though I don't see how Sydney is lasting more than a couple of seconds based on the fact that she won't be able to stop or react to a bullet they shoot, i'll counter what you said for Sydney's spells in bullet points, instead of quoting the whole lot:
- Her aiming is decent enough I suppose, but that doesn't say anything about her reacting to a speeding bullet before she can do anything.
- The familiar dragon is a nuisance, they'll easily be able to just shoot this.
- Has her shield blocked bullets or at least something comparable to them before?
- She needs to shout an incantation to blind the opponent, giving Sam enough time to shoot her.
- It indicated that she could only enchant ice wherever she walked and she needed to perform hand arcs, Sam notices this, and bang.
- The concussive force spell is good, but Sam's telekinesis is better.
- "Should have encased her", so did it even work?
- The metal transmutation spell is quite effective i'll admit, but it takes way time for her to perform, leaving the killing opportunity for Sam.
All of that is basically stopping them. Plus the Unnoticeable charm.
Not necessarily, Sam can take her out in no time to be honest.
and no proof it would even translate. Basically, She can Simply Blind or disorient The brothers while Allison takes their heads off.
Same as the Vamptonite argument, there's no proof she could resist this - but albeit I won't focus too much on this spell unless i'm in a tight space.
Apologies if this post appears somewhat rushed, I need to go out soon enough and I wanted to have something done before then. So I hope I gave you enough to work on, and I promise a proper fledged detailed post as my next one, your move.