WotLK Classic Demonology Warlock Stat Priority

1. Hit Rating (to cap);
2. Spell Power;
3. Haste or Spirit (Haste for DPS, Spirit for Support);
4. Critical Strike Rating;
5. Intellect.

Hit Rating is massively important for all Warlock specs as it increases your chance to hit with your spells, up until it caps. The stat priority as a Demonology Warlock differs slightly depending on if you are the support Demonology or if you are just there to pump on the personal DPS side of things. No matter which one you are, the most important stat is Hit Rating. In wrath you no longer have the innate 1% chance to miss, so if you are Hit capped, you will never ever miss a spell. Your first goal as a lock is to make sure that you are hit capped.

The Hit cap is 17%, which sounds like a lot, but you get a little bit of help. You get 3% hit from a Balance Druid's Improved Faerie Fire OR Misery from a Shadow Priest Your 25-mans should pretty much always have either a Boomkin or a Shadow Priest in your raid, so this means you now need 14% hit. This becomes much more achievable on your gear if you want. However you can put points into Suppression to lower the hit even more. Each point is 1%, so if you put 3 points into Suppression, you will only need 11% hit; if you are Alliance with a Draenei in your party, you get an additional 1% Hit Rating from their racial, but only if they are in your party. This means that if you are Horde, you need 11% and if you are Alliance, you need 10%.

If there happens to be a time when you do need Hit, it is suggested that you put a point or two into Suppression, rather than use Hit gems as you can get more value out of better gems, while allowing Suppression to cover what you’re missing. Unless you need less than 1%, then just use a gem if you want.

Spell Power increases the damage of all offensive spells that the Warlock casts. Demonology Warlocks love Spell Power. Not only is it quite literally allowing you to do more damage, but it is also part of your Demonic Pact as well. Whether you are support Demonology or personal DPS Demonology, you want Spell Power right after hit.

Next stat up depends on if you are support or personal. If you are Support Demonology, then you want Spirit on as much of your gear as you can get. Spirit gives you Spell Power from Fel Armor and Glyph of Life Tap and as mentioned thus far, you love Spell Power.

Now on the contrary, if you are not the support Demonology or you are just pumping hard and taking more of the personal DPS role, then instead of Spirit, third, you want Haste. Haste is nice because you are casting a lot as a Demonology lock and Haste makes those casts get out faster. And with all that haste, your Soul Fires will be flying out so fast during your execution range.

Critical Strike Chance gives your spells a chance to critically strike for more damage, which also couples with Ruin for bigger crits.