Am I doing something wrong with healing dungeons?

[Versiroth]

Hi all! As a Warrior, my advice with CC (sleep, Etc) would be tell the tank before hand that you'll be CCing. Warrior get two high threat AOE moves that break CC and if you see them using them, it's not because they're bad and want to break CC. They're doing it so the mobs don't scatter to the healer and DPS. The only AOE threat move we can use that doesn't break CC is Flash and our MP is very limited (we can't just spam it like Paladins). If you plan on CCing, tell the warrior you'll do it after the first Overpower (our AOE cone threat move). That way, the tank can mark, then AOE threat, then focus on the mark while everything else gets put to sleep.