Create a Champion That Creates Enemy "Minions"
It just seems like an interesting concept. We have a lot of champions that create "allies" but none that create "enemies." Not necessarily a strong enemy but just one that is targetable by abilities.
It sounds fun for teamplay. Champions like Elise, Zac, or Alistar (to run) can target this "enemy" to get away. Nunu, Trundle, anyDrainTank to heal. Maybe give very small cs like 1-5gold also to create extra teamgold.