Post your favorite spells here in castaway 2. it can hopefully help people decide what spells they should spend their skill points on. I personally love thunder dome. I use it at the beginning of a boss battle, then sit back and enjoy the show.
I believe it is on the option bar with the inventory and everything, called skills. When you level up, you will gain one skill point. The first level spells cost one skill point, second level cost two, and third level cost three or four. After you buy them, you drag the to your spell bar at the bottom of your screen. You use the numbers 1 for the first slot, 2 for the second slot, 3 for the third slot, and etc.