It's fine as it is, really. It's THE most useful AOE tool we have. I liked the 10% boost to crit, and even then it was not worth it to keep it - but the boost to parry is even worse, especially in big pulls - reason being, you HAVE to face the mob in order to parry it. You can't when you have many enemies and you have to dodge constantly ten thousand AOEs. Better to 'cyclone them to shreds before they have the chance to hit you more.