Your first and best step is to join the Warrior Class discord server, Skyhold.
There is a huge number of resources available to ply, and there are warriors who literally write the guides and theorycraft our class in the server that can answer questions - along with many others as well.
The best thing you can do, however, is never stop pushing damage. We have opportunities to turtle up, but it’s not our best interest to just sit on our hands holding resources or GCDs.
DEFENSIVE COOLDOWNS
Use your defensives preemptively and proactively, not reactively. We thrive on fight knowledge, so make sure you know what mechanics will body you hardest and have a plan for when you’re pressing what. For example, using Shield Wall on the first tank buster, Last Stand and Defensive Stance for the second tank buster, Rally and Defensive Stance the third if Wall isn’t back up by then.
Tangentially, do not be shy about slapping Impending Victory. It’s 20% free health on a pretty short CD that resets on kills. That is WILD. Do not fall into the trap of saving it, keep yourself healthy often and crush your enemies.
OFFENSIVE COOLDOWNS
You’re never going to hold offensive CDs. Smoke if you got 'em, do not be shy about pressing Ravager, Thunderous Roar, Demoralizing Shout, Shield Charge, or Avatar. The worst thing you can do is just sit on these in keys or raid. USE THEM. Once you get comfortable with that, then you can get more granular with them.
SPENDING RAGE
NEVER, EVER OVERCAP RAGE. Overcapped rage is WASTED rage. Rage is our lifeblood, it powers the entire spec front to back. The more we spend, the better off we are. We have MANY passives that benefit from spending rage: Indomitable heals us when we spend it, Anger Management reduces the cooldowns on Shield Wall + Avatar, it triggers our tier set, and gives us Outburst - more on Outburst later.
If you ever find yourself getting at or above 60 rage, press Ignore Pain. Think of Ignore Pain as two things:
- A way to rapidly dump (and therefore benefit) from excess rage
- An emergency meneuver to pad your HP for extremely fatal mechanics.
Unless you’re doing keys in the mid-20’s or above, the latter of these two things will never apply to you. Focus on making sure you don’t waste any rage, then you can get fancy. You will have enough survivability without trying to desperately spam this - DO NOT THINK ABOUT IT’S UPTIME.
SHIELD BLOCK
You know what you should be thinking about the uptime on? Shield Block. Well, not exactly. Shield Block is how we mitigate all the damage we take, and we take a lot of it. Making sure you aren’t fighting without Shield Block up, and making sure you aren’t taking hits from the back are surprisingly common mistakes.
It has some added benefits to incentivize you to maintain it at all times: DAMAGE BAYBEEEEE. You get an additional 30% damage to Shield Slam while it’s up, and let me tell you: you want it. It’s so good. We have lots of talents to help ease you into it, too - Shield Champion and Heavy Repercussions are great starting picks to get comfortable with block management.
OUTBURST
What the hell is Outburst? It’s a near-capstone talent that is a reflection almost beat for beat of our Sepulcher of the First One’s tier set - and that ditty was a bop. After you spend enough rage you get to have either your next Thunder Clap or Shield Slam hit like an absolute truck and increase the amount of rage they generate. We’re almost always sending it on Shield Slam because the Shield Block +30% just kinda floods hit with more damage. More, we’re Shield Slamming A LOT because it’s our most common rage generator, so this stuff will give you about half your rage bar. More rage is good rage, remember that.
However, it’s not an utter heresy to press it on Thunder Clap. In large packs, or when using Avatar with 2+ targets, you can press it on Thunder Clap as it does more damage than Shield Slam at that target count. Just be aware you are losing rage.
SPELL REFLECTION
Why does this spell have its own section? It’s free damage, and a lot of it. Not only that, you’re throwing if you don’t use it as such. How? It’s a free stop. Think of Spell Reflection as a spell the party doesn’t have to kick - and it has the added benefit of dealing damage back to the attacker (or, at worst, deflecting the attack). You’re “kicking” the effect with it.
What else does it do? It’s a free 20% magical damage reduction on a comically short cooldown. It’s just tons of free survival baked into the spec against magical damage. Even if you reflect a spell, the 20% damage reduction to magic stays on. Use it eagerly and often. Make sure you do your homework on what mechanics can let you do damage - although this is more specific to M+, typically.
DEFENSIVE STANCE
Do yourself a favor and forget it exists. You will hurt and crutch yourself using it like training wheels, so let’s build good habits earlier than later. Use this effect like a defensive cooldown… on-demand.
Imagine if you were a DPS and you could just turn on 20% DR with no time limit or resource for however long they needed, then turn it back off when the danger is over because it hobbles their damage. That’d be insane.
That’s mostly what it is for us, we want to use it intelligently and purposefully, so use it when you’re making big pulls or as part of your defensive rotation, or if you need to assist in stabilizing your health.