I'm not sure either. Being able to swap weapons might be advantageous in a larger battle, where you face different enemies under different conditions, but how does it help you in a one on one sparring match?
Cathy was trying to get in practice with as many different weapons as possible.
...also, a cookie goes to the first one to guess who her abilities are based upon.
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Originally Posted by Revlid
And so it was that Zaeed, Aang, Winry, Ezio, Sadoko and Snow White all set out on their epic journey to destroy The Empire.