Fox! Congraduations!
@Andrew - I don't know if you can actually pierce her skin with the needle. Joani doesn't have any Dormancy and as far as I know you can't turn off Armor and Invulnerability?
Armor says you can choose to not apply it, but INV doesn't give that option (unless ST says otherwise), ditto Mega-Stamina. Eufiber could be removed.
On the other hand you the player could state that she doesn't know how to lower her Armor or simply can not.
Given that this situation should pop up with novas on occassion, I would guess that Andrew has some needles with AP on them, which should deal with the vast majority of novas... but not all.