[quote=@Lugubrious]
<Snipped quote by Abillioncats>

It depends on how much that would improve her.  If this is more of a change for efficiency than a huge bonus, it could be a minor upgrade, but otherwise it's definitely a medium at least.
[/quote]

Well honestly it's more of an efficiency thing, since losing all of her aura is a pretty huge price to pay for using it. Basically it could fire at 1/4 of it's normal firepower and in turn cost only 1/4 of her aura. Cause honestly if it was only a 1/4 of her aura and still firing at it's full power that would be fucking ridiculous.