Depends if they're an AI or not. You have a conscience, you have a heart. Other people say "soul". I'm not other people. And yes, Damon. Magic. It's a thing. Now then. Allow me to explain what will happen here.
*Morgana clears her throat. As she does, the group arrive in another clearing, darkened by the trees above. In the middle of the clearing is a giant crystal.*
Tia Dalma's Crystal Mirror. It allows those who look into it to stare deep into themselves, seeing they're greatest desires, fears and what they are destined to become. Staring into it comes with a risk. You all have a sort of guardian of your soul. This guardian, if your heart is not at peace, will attack you. If you wish to see what you seek, you must defeat it. It can come in many forms. A familiar face. Your greatest fear. A monster of your imagination. A mirror image of yourself. If you wield a persona, it will be your shadow. Though, I don't anyone here will have to worry about that last one, to be honest. You can go one at a time or all at once. I don't mind. Go and gaze into the mirror and describe to me the figure that you see.
OOC: Basically, describe what I'm going to be controlling in an upcoming battle phase. If no battle preferences are said, I will choose the moveset. Give me something good to work with, please.