When to use Fury?

Fury is good for areas with multiple enemies. You cast fury on a single target, making sure you don't get seen doing it. The victim will then start attacking nearby allies, usually until someone dies. Bear in mind they will attack you if they see you first.

Fury (like Calm) will interrupt the current action, such as a power swing.

While Fury can cause the target to choose to attack opponents other than you, it can also cause other opponents to choose to attack the target instead of you.

Consider this scenario: Bob, Jim and Mark are bandits. They see and attack you. You cast fury on the closest one (Bob). Bob stops his current power swing and must wind up a new one. He happens to attack you (bummer). Jim and Mark see that Bob is emotionally unstable, and are now as eager to attack him as attack you - and Bob is closer. Jim and Mark attack Bob.

It gets even better if the bandits don't see you.

Fury is like forcing someone to fight for their life, even killing allies(they will attack the furied person) use it when sneaking to get someone assassinated, or if your feeling cruel, have a brawl on the street to wipe out entire cities(of non-essentials of course)or, if your me, cause riots......and make a huge pile of dead bodies(still non essentials)