This post explains the different abilities each element can have. Each character gets their powers by forming a pact with a spirit. You may design the spirit as you please.
You can always choose what powers your character can have.
Please try to create a balanced character, and over-powered characters will not be tolerated.

Unless specified, each character has only three abilities:
1. A basic one, that can be used frequently.
2. A more powerful one, where using this costs a lot of energy, and should not be used as much.
3. A very powerful move. Think of this as a finishing move. This costs a lot of energy to use, and can be fatal.

With this in mind, let's start with looking at the powers.