Now, I know what you people are saying powergirl is always aggressive, but actually she tends to hold back alot, even when mind controlled I have not seen her as angry as this:
This has led me to wonder whether or not Prime should become one of the main villains of PG or at least the big bad one, because I think she of all people should get that honour, with the murder of her cousin (father figure).
This might be a close second it looks pretty cool:
I don't know why they were fighting Prime in the first scan, but it just led me to thinking of how much you don't want her to get angry:
I mean she has the power to knock the tar out of Solomon Grundy: