IF it was 5M and goes up in range and effect as you level it up then it will be fair.
But LoS or whole area won't work especially when you have to consider that they might make future enemies with Leadership and giving a global dodge/res to every enemy in the game will make it more frustrating to play than anything when you start missing tons of hit. It add a strat where you have to keep the leadership enemy away from the area and that you either need to have a guide or Loremaster to know which one has the "leadership"
Last edited by Ellezard; 11/02/17 09:30 PM.