Originally Posted by
qu1rex
Destruction's GCD is so short, you can use Enfeeblement whenever possible, at the start of the fight, after a spellcast, while moving etc.
As for havoc, just using it would be a game-changer for you, knowing how to use it well comes with practice (i.e. putting it on a warrior and executing his skull banner with shadowburn)
Immolate, you should only refresh with Felflame or if you have low mana and arent being focused, just hardcast it.
As for the fear comment, I saw your fear icon on your toolbars, it hadn't been cast, that's all. Perhaps you thought you cast it but hadn't? Check the 2nd video you'll see what I mean.
In addition, pay attention to when you use shadowfury, don't use it randomly, don't use it during DK ams or his stun immune CD, also don't use fear during ams or lichborne, you'll want to either just try to escape/tank his damage, or nuke through it.
One more thing, do not ever use chaosbolt at the start of the encounter when you have only one ember, you'll leave yourself out of choices for doing something else, always build embers before burning them out, never empty yourself at the start hoping for a quick win... You're not a warrior or bm hunter.