So all the way until just now, I thought there were simply no undead crowd controls in this game.
Just found out on reddit that oathbreakers have control undead, and it works on a lot of bosses too.
Like we have hold person / monster, dominate person / beast / celestial or whatever its called, but no halt and control undead for clerics / wizards / sorcs.
But if we did, every single thing in the game would be trivialized :x