You will need the following items for this spell:
Animal blood
Blood of target
animals favorite food
targets favorite food
voice
Cast a curse on anyone that turns them into a animal every day and a human every night. This is black magic so be careful.
mix the ingredients together. tap your wand on the cauldron. Chant, "Okolo mimiti makala okaiola! Mene ititetete okomoto mimike! Ho maioleh!" Make the target drink the potion. Then if you hear the selected animal's sound in the day and nothing in the night, then it worked!