It was powerful its true... but it also has its drawback, which is that once its cast 3 times on a person, they can just stick around a group, and anytime you root somebody near them it will refresh the 0s DR on them, making them unrootable, until you decide to not use roots until DR is gone. And if your not casting roots, but have your Natures grasp up (now with 3 charges), they can just keep melee'ing you to keep from getting rooted again. Not saying this make AoE roots bad.. far from it... but just something to think about. It can certainly negatively effect your on demand CC if it gets out of hand.

WTB AoE cyclone