[ Natasha stares at it a moment before lifting her hand and making a gesture, speaking a word she's heard Stephen use a dozen times in their magical lessons when she inevitably casts something wrong. Which is more than she's going to admit to either of them. But mostly because Stephen delights in giving her a hard time in magical training in revenge for her combat lessons. She supposes that's only fair.

The magic dispels, stopping the multiplication or cancelling it from continuing further, but not reducing the effects Reno had made on the tree. She gives a furtive glance around to make sure the farmers hadn't noticed anything odd. ]

That could make a hell of a problem if someone swallowed one of those and it continued doing that. But I think as long as we stop the spell before it gets too out of hand, it should be okay? [ She hopes? ] That is, if you can even cast it again.