Muhammid Ali was reknown for his speed. It wasn’t about the big one punch knockout.
Wait, what the heck does boxing have to do with playing a warlock? Well, adopt this mindset and you’ll go far kid.
The two mindsets that I think young destruction warlocks fall into are either “Crit Big” or “Crit Often.” And these are perfectly acceptable, until it comes time to do some real raiding. There aren’t many fights in this game that allow you to just sit in one spot and cast continually until he’s dead. You have to move out of fire, dodge fire, run away from fire…(the guy at Blizz in charge of designing boss mechanics must be a pyromaniac) You get the idea, there are lots of things in this game that require you to stop casting.
So you need to make as much use of this limited casting as possible, and Spell Haste makes this possible. The key to doing top end damage is consistency. The reason that spell hit is so valued is that it makes all your casts consistent. You know they’re going to land. They may not crit, nor hit exceptionally hard, but it’s going to land. And when you’re in a situation where you may only get 2-3 casts off before you need to move again, having one of those resisted will be devastating.
Let’s compare 2 warlocks, one geared for spell haste, the other geared for crit. Then let’s say we have a window of 30 seconds before we gotta move. The crit lock is going to land 12 shadowbolts, whereas I’m going to land 14 in my haste set. Sure, the other guy MIGHT crit (and I MIGHT crit too), but I know that I’m all but guarunteed to land 2 more shadowbolts than the other guy. Gearing for crit is simply just praying that you get lucky, whereas with haste, you know exactly what you’re bringing to the table.
So if you’re looking to start pushing to the next level, you need to adopt an Ali-like mentality – “Hit Quick, Hit Often.”

