When you looked into a reflection of yourself, what you saw was nothing more than a 1 year old in a baby t-shirt wearing a disposable diaper! You tried to say something, but all that came out was baby gibberish.
You ended up trying to open the door to the bathroom but your small stature prevents you from reaching the doorknob. You shake your rattle in frustration, but when you do that, the rattle glows and the door which you couldn't get past opens magically.
You giggled in glee for accomplishing what would normally be an impossible task for a baby, but you can't help but wonder what else you could do with your profound, magical artifact that seems to only work for infants (at the cost of making its user one)
You waddle out of the bathroom but fall on the floor after walking a short distance. It seems your best option for movement at the moment is crawling. When you try to reach your room, you encounter your brother again, perplexed at the sight of a baby in the house?
"Who the fuck are you and where did you come from?"
While your brother is trying to process what is going on, you see this as a WONDERFUL opportunity to test out more of your new magic powers!
You shake the rattle like before while thinking of something, and then...