While looking at how everyone says to play the psycho, I have found that this setup works quite well for me.
Dark Infusion Corruption Epiphany Retrograde Free Will Psycho Form Wraith Form Dark Echos
i usually start out by shifting into one of the forms, and using that. since they help me regen focus, i dont really have to worry about the amount i spam dark echos and corruption. i use dark infusion on myself if i run into trouble on focus and i set veradux onto defensive for that turn so i know i get healed. my main strategy is basically dark infusion or echo the person, epiphany someone else and forget about them, and then if my team is in trouble shield and heal with free will or set them on offensive and let the opponents heal the dude to full with retrograde.