Mermaid

Set up a bath with just water, no bubbles or anything. While its filling up, get the song you want to transform to and put it on repeat (some good songs are Stars Dance by Selena Gomez and Burn by Ellie Goulding). When the bath is done filling up, get a tablespoon of salt for every 100 mph you want to swim (ex. 3 tablespoons for 300 mph) and put it into the water. Get what you want to look like as a mermaid and your power in mind (for the tail colors, use natural colors, like blue, gold, red, or green. Don't use pink, purple, or yellow. Use whatever power you want to). When you are ready, get into the tub and repeat this spell:

"Mermaids in all the oceans,
Mermaids in all the lakes,
Please grant my lifelong wish.
I wish to be a mermaid,
Swimming happily in the sea,
Please give my lifelong wish to me.
I would like a beautiful (color choice) tail,
With a top to match.
My power will be (power)
When I transform,
I just have to say
Mermaid when wet.
To go back to my natural human form,
I just have to say
Human when dry.
Mermaids in all the oceans,
Mermaids in all the lakes,
Please grant my lifelong wish,
To be a mermaid,
Swimming in the deep."

When you are done, go under the water and hold your breath for as long as you can. Once you come up, drain the water, but don't get out until it is completely drained. You should be almost dry by then. Dry off and put on pajama pants that are the color you said you wanted your tail to be. You are completely done with the spell after this. Your power should come first. If you said that you wanted more than one power, then you will only gain one power out of them. No matter what, you will ALWAYS have only one power. Your tail should come in the next month or so after getting your power. Your power will come 2-4 weeks after doing the spell.