"Lies you say! Lies!" The wizard screams at you. "I'll have to teach you some respect."
You feel a painful tingling in your skin as the hair on your head grows dark black and Extend down your neck and back. The same black hair starts to form on the rest of your body just shorter.
You feel your ears change shape and move to the top of your head. Your teeth rearrange as your nostrils grow bigger and your nose grows wider. Your muscles grow and change shape as your fingers become numb.
Looking down you can see them fusing together into one large hoof and notice the same for your toes as your foot gets longer and skinnier.
a painful pulling above your ass makes you look back to see a long tail push its way out. Then your back rearranges and you are forced to all four hooves. You panic and start bucking wildly.
You try to scream as your face shifts into a muzzle and your neck lengthens, but all that comes out is a loud bray. You are now a fully formed black stallion.
A worker comes up to you and looks at the wizard.
"Sorry, boss, this one must of gotten loose. Where's he supposed to go anyway?"
"Send him to Texas." the wizard replied. "He'll make a fine addition in the rodeo."
The worker escorted you to the horse trailer. You tried to fight but your mind was dazed and couldn't come up with the energy.