Executioner a tad too hard

The executioner him self isn't too hard, but the shipload of adds... that is a little over to top.. they don't take damage from the executioner himself and trying to kill the executioner is impossible because the adds are in front of him, or between the player and the executioner. killing them takes way too much time.
Make them volnerable from the ececutioner of give them less health so the player can kill them more quickly and less spawning of them would be grand... at top i was facing 10 to 14 adds and the executioner at the same time... that is waaaay to much and gives no room to escape dmg at all