CC and WHM

[AngelicSence]

Well... You can use that combo in Brayflox HM. Just right before the 1st boss fight, where the tank usually trap 2 mobs outside. You can push "poison plant" away and then cast sleep. Btw, that push has the ability to cancel mobs AoE attacks so, you can interrupt their casting this way. If your tank is close to a wall, just push any mobs to that direction and successfully interrupt casting. Your idea is not false darklord, just need to find smart use of it
Keep coming up with new stuff.