Casting a spell by simply saying the desired effect may seem impossible and something you would only find in a comic book, but maybe if you believe hard enough, you can make it happen in your favor.
Backward Speech is something you would see the famous magic superhero, Zatanna, do. But one of my sayings is:
You never know.
For example: Here's something I would chant to myself if I feel like it:
Ym hsiw emoc eurt. (My wish come true.)
And if it doesn't work, than I blame myself for liking too many magic superheroes. But I still think it's a good idea. And I believe... it works.