To add a little more detail to this suggestion, toxic hand 100% works in infernum even vs a hunter with cure, you will receive toxic hand for the full duration, same for halt, even vs a hunter with cure, you will receive halt for the full duration. Restrain seems to be the only one that is bugged and works "when it wants too" in infernum. Sometimes players will receive the debuff but majority as the player base has talked about it in game related channel doesnt receive the restrain debuff. Archer already being a very vulnerable class in infernum this is a huge issue as this is life saving at times in fights for an archer and its not working to my knowledge (only in infernum).