Ok so this is how it would work.
If you user control a unit, the last enemy unit you hit while in user control, will be targeted by your unit once you are out of user control.
This would essentially allow you to make certain units of yours, target specific enemy units if you are skilled in user control.
Once the targeted unit is dead or garrisoned the lock on that unit disappears, and your unit goes back to normal behavior.
Some uses:
Make your Toxic deads target the backline magikill and archidons instead of the frontline wall.
Make your spearton target a magikill and not its minions.
Make your archidons and speartons target the user control Spearos, giant, and/or Atreyos.
Etc.
Notes:
Not sure if this mechanic would be too niche to add.
This mechanic might be too annoying to fight against.
This mechanic might not be that useful overall.
