Mermaid Spell

First thing you do is one part of body must be wet like a finger or foot etc. in water without salt and say this chant three times:
 

"Oh great guardian of light grandmother of the sea please grant my wish for me to become one of you a mermaid to have a (tail color) tail and the power of (power). I wish to be a mermaid in 1 week but not forever I will become a mermaid when I touch water only with my pearly charm on. When I leave the water my feet return to me when I go to the water I return to the sea. But I must be careful If I see the full moon and I touch water I will be a mermaid all night and shall not turn back to normal to when the full moon sets. I will be granted with my tail with my charm whenever I touch water but my powers shall stay forever (say your symbol specifically) you shall make my desire, so mote it be!"
 

Afterwards you will get these side effects such as:

You will feel tingly, achy, nauseous, and itchy and maybe a rash, and your belly will hurt often, if you choose a heat or freeze power you will feel cold alot if you chose freezing and if you chose heat you'll feel hot alot.

But all of those side effects will be gone after your tail and powers come in.

You don't have to wear the symbol all the time until your tail appears you just have to wear it often.

You can only tell and/or show two people. If you tell more than just two people than your tail and powers will go away. So be careful. And keep it a secret.