Me and my buddies have been doing the Crota's End raid on level 30, and we're stuck trying to kill Crota. We need someone who is good at using the Sword of Crota against him, because none of us can figure out how to bring down his shield with it. When the Thrall Necromancers spawn, we keep getting killed by their Curse of the Ancients before we have a chance to figure out how to break down his shield. Also, when he uses his Void Cyclone attack, we can't figure out how to dispell it. We think it has something to do with the sword's special ability, but nothing so far has worked. It may involve those Necromancers. We've been at this for seven hours trying to get the Void Shredder machine gun, so any help would be appreciated. Message me if you're willing to help.