It works the way it does mostly based on conjecture of how one is able to use their abilities in the first place—Iona's "dead zone" is an area of electromagnetic disruption affecting the part of the brain that enables use of abilities.
I'll just keep using the electricity analogy for this. It would overcharge that part of the brain, causing stress by being within the area. Attempted use of abilities causes a power surge of sorts, resulting in incapacitation and a specific hallucination caused by Iona herself. When making contact, Iona can close that current, making her able to efficiently contain and increase the other person's output, effectively overclocking them.
If her only ability was negation and it required physical contact to work to its full effect, the only thing she's good for is removing one person from the equation, and it would be nigh impossible to reliably pull off. What would be the point of having her exist like that without making her a villain? And how would she get to use her powers at all? She would basically have to be the Rabbit of Caerbannog if she provided no benefit for the brief struggle of reaching her, and I don't really like that. Not to mention that she's also an otherwise normal child. She doesn't have the physical strength to just stick to someone against their will. It wouldn't be difficult to hurt her just by punching her, either, but then you're just a jerk who punches little girls, as if trying to use supernatural powers to harm her isn't bad enough.
And Unyielding, I think you're overestimating just how much of a threat Iona really is. On top of the fact of her aforementioned physical weakness, Iona is pretty useless on her own. She requires an ally to be truly powerful, by making them more powerful. She has the anti-ability field, but it's not like she can move it around without moving herself. Ability users would naturally learn to avoid her, and the few that make contact instead find their own powers amplified.
However, the area of effect is unsettling (~20-foot diameter when I originally posted it), so I've cut that down. Honestly surprised that nobody picked up on that when inadvertently disabling an entire room was probably the only worrying part of it.
So unless i'm reading it wrong (Completely understandable if i am),
Pros:
- Your a walking null zone which cancels out everyone powers
- anyone who tries to use their powers around you is beaten in instantly.
- You can augment your allies powers which protects them from your Null zone
- Applies constant stress to anyone who is in your null zone
Cons
- your physically weak...
You cant even say you require other people around you to use your powers because you have the null zone.
Here are the problems i have with your ability:
1. anyone who tries to use their powers around you is beaten in instantly.
Im sorry but instinct K.O. is overpower in its self.
2. Null zone negates powers.
Its not the ability of negating power which bothers me. It is the fact that you do it at a range. You remove any challenges present to the group from ALL power users. (Guy has super strength, Nullified. Guy can turn to water, Nullified. Guy can multiple and create black holes, Nullify) You beat anyone as long as you have someone with you or they use their power. And if your argument is that they have to be close and you are useless solo. You are a 5 year old girl. Nobody is going to leave you alone anywhere.
3. It passively works.
You always have your null zone up and if you dont always have it up you never mention how long you can keep it up nor did you say it tires you out or it has a limit.
If her only ability was negation
Never said only power I made a suggestion on how the Null field should work
see below
(or you can do both of what i said. Aura that reduce the effects of powers and makes them more difficult to use but if you touch them you can nullify it all together)
As you can see nowhere did i say you should not have the argument ability
What would be the point of having her exist like that without making her a villain? And how would she get to use her powers at all? She would basically have to be the Rabbit of Caerbannog if she provided no benefit for the brief struggle of reaching her, and I don't really like that.
With your current powers you STILL will run into this. Any adult, teen, or bigger kid can just walk up to you and you cannot do crap about it. If I wanted Kaos to beat up your character and Kaos knew that using his powers around you would K.O. him. He will just walk up to you and boom he win.
But lets flip the coin to the highlights of your powers
(with friend) no enemy can use anything but their normal human strength while you allow your allies to use their powers with a boost. I doubt the GM could make any challenge without just saying their is someone who is immune to your ability all together and then just have no ability at all. So unless the GM God Modes... Who ever you attach to becomes Invincible.
Honestly the 3 points together i listed above are what makes.
Number 1 should go period. Nobody likes one hit K.O. moves.
This brings us to number 2 and 3
If you change number 2 to a physical contact or give some kind of requirement so you cant just effect everyone then you wont be op. because you can work around it.
If you change number 3 and give your self a time limit of how long you can hold up the Null zone. Before you have to stop and take a break or limit how long you can nullify someones powers for before they get a chance to use them again. Then you Give people a window to do something.
Overall the way im thinking about this is that we are in a superpower RP. And you character has the ability to Negate superpowers. Your ability is really anti fun to everyone else no-matter how you use it but if properly regulated then it can still be fun to have around.