Nadia, midly preoccupied since even though she had a fairly good level of tranfiguration magic still wasn't that sure about her abilities to 'split' beings, would have wished they had spiders for practicing so she wouldn't feel that guilty if she chopped the their leg. While looking at the mouse run uneasily into their cage, she performed the wand movement without incantation and incantation without wand movement to be surer as possible. But then again, what did she know?

"Transformigify Dividere!" she finally performed and watched with her stomach hard and yet a bit amused as the mouse separated itself like gum into two things that were pretty much square with dots, but still lacked the proper number on each side. Her nerves always did that to her.

"Transformigify Dividere!" she performed the incantation again, with a pretty much correct wand movement and a better mental image of what she wanted to achieve, thought she didn't play that much with dices.