lesser greater and exalted Aon have what I believe to be one of the most insane abilities in the game it is an AOE stun onto the enemy team and is an AOE a damage buff to whatever in your team site is standing in it therefore you want this to be very very useful in teams that want to Clump up and versus teams that want to Clump up it is just a double bonus for that because you just buff everything on your side that is hitting the enemy team while the enemy team is getting stunned so
just hitting as many of your own units and hitting as many of the enemy units is the optimal outcome for you therefore playing against this unit you want to spread out your team and you want that unit to hit as a few of your units and buff as few of the enemy units so maybe it's just positioning your front line slightly in the back so that the enemy front has to run into you because they range to do this they cannot run up