There are several kinds of magical powers in index, which can equalize to several supernatural powers in other verses.
As already said her magic null works on divine power. Yeah, that is also magic in index but that is just a matter of classification, not of nature.
That should be applied to the profile then. It should be specified what does and doesn't get affected by the barrier, instead of simply saying Anti Magic without any further clarification. It's not a Anti Magic Field if it works in the sense that you are saying.
You and Dragnoir (and before you attempt to defend yourself and say you didn't say it, you directly quoted it as something you agreed with, so there is at least that.) said that it would specifically work if the magic run's on life force in some capacity earlier. Now that it is proven that it doesn't, your tune has shifted to "It should work anyway because she's divine".
Even if it should, which it shouldn't, the profile does not have divinity for Byleth. Even if you want to argue that Byleth should be considered in the category where divine beings are that would be affected, her profile has no indication that she has any form of Divinity that the field could work on. This is VSbattles. Even if we believe something to be a fact, if it's not in the profile, it is not considered as such. Here's a example. I believe that Makoto Yuki should be the strongest Persona MC due to having a particular power called the Universe Arcana, but as far as this wiki is concerned, Ren Amamiya is more powerful.
You should clarify how things like this anti magic field would work before you get into a debate about it, otherwise you're leaving other's in the dust and not informing them of a crucial aspect of a battle. Dragnoir stated it had to do with Life Force, then you say it works anyways. You two need to make up your mind's, and show proof. And make sure to keep in mind what the profiles say, too, because blatantly ignoring what they have, or more importantly, what they don't have in this case, is just in poor taste. If you want, you can make a CRT about Byleth and Divinity, but as far as this wiki is concerned at the moment, Byleth has no such thing. She is not Divine according to this wiki, thus according to this wiki, the Field would not work on her.
I am not trying to come off as rude. Nor am I trying to come off as aggressive. But you two keep ignoring profiles and introduced new information about this ability, changing how it works in the middle of a battle. I cannot emphasize enough how unprofessional and disingenuous this is. Even if Byleth should have lost this fight, you did a poor job of defending Hyouka. FantaRin did a much better job in engaging in a productive debate. Before talking about hax, this was a engaging argument.
But the moment you introduced the anti magic hax, you were highly pressuring, unprofessional, and disingenuous. I will admit I did a sub par job of defending Byleth, as to be expected due to my lack of close familiarity with her, but you pushed the burden of proof that should have been on you unto the opposing side. You also misinterpreted what Dragnoir said. And I quote, "Tho it also worked against Vento who uses Telesma, which is a more divine version of Mana than it is life force, i guess", this implies that it worked because Telesma is a more Divine version of Mana, not because it is inherently Divine. Because it was a Mana variant, it was affected, that is what this most seems to imply, not that Divinity by default is affected by this. If that were the case, you would see this little girl taking on GOW character's and passively crushing them and their blood vessels.
I should note this is more reflective of the way DT acted and less so of Dragnoir's, but as a general argument, the opposing side was very, very unprofessional. The Opposing side should have, in my opinion:
- More thoroughly explained and deliberated how the intricacies of the Barrier Work
- Provided Evidence that would back up their explanation
- Less Flaky with how the barrier works
- More Organized
- Paid attention to the Profiles, the Abilities they have, and take into consideration how they affect the battle, as well as how a person not having something on their profile would affect the battle.
This isn't a personal attack by any means. Consider it criticism, and something you should take notes from. I did not provide a perfect argument myself, admittedly, but I hope that this can prove as a learning experience for all involved.