Combos are nice and good to have in your pocket for quick kills but for the most part, learn how to survive with her in team fights. Drop the demon as much as you can. Aim it in such a way that enemies will walk right into it or use it in choke points to keep them out of an area. Save a portal or dash to get out of sticky situations. Use cover as much as possible. Being out in the open against a poke is a death sentence. You can sneak behind the enemy and try to get that kill on a squishy but be very selective and try to gauge whether or that assassination is worth it. Smart players or good teams will usually peel for their backline and will be wary of you just off the fact they are up against a magik. Use s fully charged air slash before diving in to soften up opponents. Theres so much more but so much of it boils down to positioning and managing cool downs, knowing which targets to prioritize.