Welcome to my guide on Muradin, here I will explain the two main builds I use on him. Also when and why you should use them.
I decided to make this guide because most of the guides on Muradin I find on here seems to not have the same talent-decisions as I do.

IF YOU ARE JUST HERE FOR A QUICK SUMMARY, SCROLL DOWN TO THE "OVERALL SUMMARY" SEGMENT.

I believe these two builds are what you should go for in every game as Muradin. Even if you are a solo tank, I do not believe you should pick talents such as Block at level 1 or Third Win at level 4.
Why? Because his other talents are strong enough to be picked instead of these.
Keep in mind, I am not saying his other talents are **** or should never be picked. That's up to you, but I am saying I would probably never pick them.

In the first 2 sections about the builds I will only go into the level 1 - 7 talents because those are the ones you're gonna swap around depending on the game situation.

My nickname is Patthen but on basically every website I go by the username HiPatthen.
Why? Because I say so. :) Also so I can use the not so clever greeting phrase: "Hi, Patthen here!" ( ͡ ͜ʖ ͡)

I am a rank 1 player in both Hero and Team league and I main the role Warrior. I've played all the different warriors (except Rexxar) a lot, so I decided to try out making guides for them.
I believe I have a pretty good understanding over their talents and have decided to share it.

This is the first time I've ever written a guide, so please be gentle.

Pros
Great utility
Pick-off potential
Good survivability
Tanky
Has a great impact on certain comps.
Amazing 1vs1 potential late-game
Great jungler mid-game

Cons.
Weak damage early game
Poor wave-clear
Only good single-target damage
Sort of weak against Giant-Killer (but his auto-attack speed reduc. kinda solves that.)

This build is my absolute favorite and it is extremely strong on the right maps.


Level 1
Perfect Storm - Storm Bolt's damage is permanently increased by 5 for each enemy Hero hit.

This talent is just overall really strong and it scales super well into late-game.
Think about this, Storm Bolt's damage at level 1 is 50 and it adds up 10 damage per level. That means for every 2 hits on an enemy hero gives you a level worth of scaling on your Storm Bolt.
It synergies extremely well with Sledgehammer at level 4.




Level 4
Sledgehammer - Deals 400% damage to Minions, Structures and Mercenaries. Destroys 4 ammo from Structures.

Super great for clearing camps after getting the level 7 talent Piercing Bolt.
Synergies extremely well with Perfect Storm from level 1.
Think about this, for every hero you hit with your Q after picking this talent will increase your damage to minions and mercenaries by 20!




Level 7
Piercing Bolt - Penetrates through the first target hit, hitting 1 additional target.

This combined with Perfect Storm and Sledgehammer is really good for clearing camps.




Summary
This build is my go-to pick for maps such as Blackheart's Bay and Garden of Terror.
It's an easy and quick way to quickly clear pirate camps or plant camps, making it so you can get back into helping your team a lot quicker. Also great for killing off bosses.
On the pirate camps you only need to hit a Storm Bolt on both of them as well as a Thunderclap.(and possibly 1 AA each depending on your level and stacks.)

It also works wonders on Battlefield of Eternity where if you're in a situation where the enemy immortal is really low but your team is out of chance getting it, you can go in and poke with your Q every time it's off cool-down.

This build is what you should go for when the enemy team has a lot of Auto-attack based heroes.


Level 1
Reverberation - Enemies hit by Thunder Clap have their Attack Speed reduced by 50% for 3 seconds.

This is the main talent for this build.
It almost completely shuts down an enemy Auto-attacker for 3 seconds.
Synergies really well with Thunder Burn at level 4




Level 4
Thuder Burn - Thunder Clap leaves a zone on the ground that explodes after 2 seconds dealing 25 damage and applying a 25% slow for 2.5 seconds.

Synergies with Reverberation at level 1 as well as Thunder Strike at level 13 because it the second hit also does the same effect as the first hit. Try to use this where the enemies have to stand to either force them to wait out the zone on the ground or to stand in it and get affected by the attack speed slow and possibly the extra damage.




Level 7
Battle Momentum - Basic Attacks reduce Ability cooldowns by 0.5 seconds.

Probably one of the more underrated talents in the game. Considering the game is so ability-based and there's no big ways to snowball like the is in for example in League of Legends or Dota where you can get items and actually scale that way. No, in this game you have set damage on basically everything. With an exception of some talents on heroes like Muradin and Azmodan. So that's why this talent is so strong, it gives you the option to use your more abilities over time than normal. Which in my opinion is crazy worth it.
Just a great overall talent since you're gonna be auto-attacking a lot when standing in the enemy teams face.




Summary
You choose this build when the enemy team is very auto-attack heavy. So see this as a sort of optional build.
This build is probably the better build on maps such as Tomb of the Spider Queen or Infernal Shrines, where lots of wave-clear is necessary.
The way I decide if I go this build or not in a game is most of the time if the enemy team has at least 2 heroes that are auto-attack based. (Kharazim, Raynor, Valla)
However if you're up against an Illidan/Abathur combo, you should most definitely get this build.
Keep in mind to always hit your W on Illidan, it shuts him down so hard because his entire kit is revolved around him auto-attacking.

This build is when you're up against an enemy team with a lot of auto-attack based heroes, but you're on a map where you really need the Sledgehammer and Piercing Bolt. Those maps would be Blackheart's Bay and Garden of Terror.

You lose out on the extra damage, but keep in mind that the Sledgehammer still deals enough to quickly take down the camps on the maps. Just not AS quickly.

These talents do not have any real synergy and is also decided on what team you're up against.

Level 10
Avatar - Transform for 20 seconds, gaining 320 Health and causing your Basic Attacks to stun enemies.

This is a no-brainer, you gain health and you become an crazy interrupting-machine.
Incredibly great against Lili and Nazeebo. Great for either turning a fight around, or just gaining a chunk of health to get out of a chase.




Level 13
Thunder Strike - Thunder Clap deals 300% damage if only one target is hit.

or

Spell Shield - Upon taking Ability Damage, reduce that damage and further Ability Damage by 50% for 3 seconds. Can only trigger once every 30 seconds.

This is a pretty simple one, if the enemy team has a caster-heavy team and you either are a solo tank or can't handle their poke. You pick Spell Shield, you lose some damage but you can tank up so much more.
Example being if they have both Jaina and Kael'thas, you go Spell Shield.

Otherwise, you just pick Thunder Strike like normal.




Level 16
Stoneform - Activate to heal for 50% of your maximum Health over 8 seconds. Second Wind is disabled during this time.

or

Imposing Presence - Enemies that attack you have their Attack Speed slowed by 40%.

Stoneform is without a doubt the strongest one on this talent tier, 50% of your HP back over 8 seconds. Just pop it as soon as you start taking damage in a fight and you'll slowly regenerate it back during the fight.
It synergies well with your Avatar. Pop Avatar and Stoneform in that order and you'll earn more HP per tick that you would by not having Avatar on, since it gives you percent of your HP and not a set amount.
Also Stoneform is great while being chased.
However, if you're up against let's say an Illidan/Abathur composition AND they have an auto-attack back-line like Raynor and maybe even a Kharazim healer. Then I think you should get Imposing Presence. That way you can Thunderclap the Illidan while still lowering the ranged auto-attacks coming at you.




Level 20
Rewind - Activate to reset the cooldowns of your Basic Abilities.

Definetly Rewind, every day of the week.
It gives you a chance to double stun, double jump away or towards someone and prolong the auto-attack slow on enemies. This late into the game, if you're going the hammer-build, you will even have the potential to
combo-kill an enemy backliner. Just jump in, Storm Bolt, Thunderclap, Rewind and repeat. Also throw in and auto-attack between each attack for extra damage. If the target you're going for is alone, you will have most likely killed him. I'd say that Muradin probably is the best hero to use Rewind on.


BONUS
Give 'em the Axe! - Basic Attacks deal 75% more damage against slowed, rooted, or stunned targets.

If you're completely stomping and your has a lot of disables(One great example is Jaina) you could consider going Give 'em the Axe! for extra damage on your auto-attacks.
I do not recommend going this unless you're quite the risk-taker, it's a blast hitting people for over 300 damage, though. This talent is on the border of "troll-y", but it's not garbage for sure.

The standard build to go for if you're up against a team without a heavy amount of auto-attackers is the Hammer-build.
It has the most impact on a team where your Reverberation won't do much.
You might think; "but Patthen, why would I wanna pick all these damage talents over the defensive ones like Block?"
Listen up little one, there's this old saying "The best defense is a good offense." (Uh, cringe?`)
A little more detailed answer is that his damage talents are way too strong to pass out on, he can sometimes even work as a back-line killer, if given the chance during a teamfight. I also feel that he is tanky enough with his passive, ultimate and Stoneform talent.

When against auto-attack heavy teams, go for the Thunderclap-build.

And when you need the Sledgehammer and Piercing Bolt on a specific map but they have a heavy auto-attack based team, go for the Mixup-build.

Example of what is possible with the Sledgehammer (+ Rewind in this case)
Make sure to use this carefully though, only when you know the enemy team is somewhere they can't get to you.
You definitely need to make sure you have enough mana for the Q(s) and your jump.


Example of how you can make use of Muradin's passive (And Malfurion heal in this case)

This has been my guide about Muradin.
In the near future I will update this guide with specific instructions on specific maps aswell as
add video clips showing off some of my points made in the guide.

Please tell me what you think about the guide and come with any form of ideas or criticism.
If you spot any grammar mistakes or something that just seems off, please let me know.

I also stream on twitch(www.twitch.tv/hipatthen) where I respond to any questions about the game or myself.
Stop by and say hi. (Self advertising, f*ck yeah!)