This is a very quick guide to "Huskar, The Sacred Warrior". This is not very detailed but just gives you an idea of how to play this hero. Some would suggest otherwise but this build is tested by me personally on different situations and i would just like to share it with you.

Team Role:
Early Game Role: Farmer Carry - Ganker
Mid Game Role : Farmer Carry - Ganker
End Game Role : Pure-carry

Farmer Carry - Ganker:
You should find good balance in farming and ganking with this hero. He can gank well early with Life Break and a few hits from Burning Spear. Have a teammate go initiate with a decent stun and you're on your way to a quick kill. After a kill, your hp will go low and you will need to tango or use Inner Vitality. I suggest killing a few neutral camps first before healing. Your damage and attackspeed is better the more hp your hero is missing. You will find that farming with him with full hp would be boring and would take long as compared to farming with more than just half hp. Be careful though. Map awareness is vital with this hero.

Farmer Carry - Ganker:
Your role with the team still doesn't change during mid-game. You only get to do it better. With items like Urn and Dagger. Farming and killing has never been this easy.

Pure-carry
Why a strength hero is a pure carry? 'Coz all he does is deal damage and deal more damage and deal absurdly great damage. Nothing more. You need to kill and kill quickly with just half your hp. You need balls to maximize the use of these hero. You sure you're ready for this?

Item build:
1

Justifications:

You need to attack fast and the +8 str from treads adds to your damage and survivability. Strength items is the way to go with this hero. Why? "coz it improves your Inner Vitality skill. And Inner Vitality makes or breaks this hero. The weaker the heal is, the earlier he dies, the less damage he deals, the less hero he kills.

Urn of Shadows synergize well with all his skills. He ganks and kills a lot so this would provide him the additional heal if Inner Vitality isn't enough. This is also a strength item. Remember this, "The more the strength, the better the heal, the longer he lives, the more damage he deals, the more hero he kills.

Armlet of Mordiggan is the most viable choice for dps item. Gives you str when activated, attackspeed and damage. A must for most dps-ing str heroes.

Kelen's Dagger of Escape gives Huskar the much needed 'good positioning" during clashes and surprise ganks. He can focus on the opponents main hero and/or pick heroes who are strategically positioned at the back of the group. This can be a sniper or support heroes who have already casted their skills. It also saves time from running towards the opponent and taking hits while still out of attacking range.

Heart of Tarrasque is the ultimate str giving item. Need I remind you again? "The more str..." I knew you'd remember.

Extension builds are up to you. That's where your creativity and good assessment of the situation should come into place.

Honorable Mention:
1.

The bane of pure carries are disables. This nullifies all but a few skills that wants to stop you from dealing massive damage. Jumping into the fray with dagger also merits that you will be taking a lot of damage from different sources. This removes magical damage from the list.

2.

This item makes your Life Break skill seem like your first skill as it improves its cooldown dramatically and improves damage.

Skill build:

Lvl 1 Berserker's Blood
Lvl 2 Burning Spear
Lvl 3 Berserker's Blood
Lvl 4 Inner Vitality
Lvl 5 Berserker's Blood
Lvl 6 Life Break
Lvl 7 Berserker's Blood
Lvl 8 Burning Spear
Lvl 9 Inner Vitality
Lvl 10 Burning Spear
Lvl 11 Life Break
Lvl 12 Burning Spear
Lvl 13 Inner Vitality
Lvl 14 Inner Vitality
Lvl 15 Stats
Lvl 16 Life Break
Lvl 17 - 25 Stats

Justifications:

Many don't know it but Berserker's Blood makes Huskar what he is. Without its bonuses he would be a lame, slow attacking, str-based hero. Maxing it early gives you its benefits early too since you are inevitably gonna take damage early game. With just a few damage from opposing hero and/or creeps your gonna have extra damage and attackspeed to last hit and deny with ease. I try to put balance in leveling with damage from Burning Spear and heal from Inner Vitality 'coz you can't do well without the other. The more damage you deal with B Spear to your opponent (and yourself) the more heal you would need from I Vitality. Adjust this depending on your situation and how you feel.

If there's one thing I want to teach you, it's going for str items. You don't need Hood of Defiance and/or Vanguard. The more str you have the more heal you're gonna get and the more damage you're gonna deal. Also, cast Life Break and Inner Vitality at the start of the clash. Going Life Break at the start of the clash improves your damage and attackspeed thru Berserker's Blood. All his skills synergize well with each other. Maximize this.

Good Allies

Anybody with a decent disable is a good ally to every hero so I would mention only a few with great synergies with him.

Any kind of heal would be greatly appreciated.

This tandem needs special mention. He can not only heal you, he can also make short work of your Life Breaked opponent. Talk about quick kill.

Weaknesses

Surprised? If a hero with a decent burst damage like Puck, Tiny, Anub'arak or Pugna gets a hold of this item, you'd be thinking twice before going for a kill.

This is kinda obvious. You'd be half or less than half your hp most of the time, right? What would you expect this hero to do?

They'll be feeding on you during the early stages of the game. Better not show your face on the map until you get some of your items.

Huskar at the Competitive Scene
Truth be told, I've never seen Huskar at the competitive scene. His way of killing heroes is kinda anti-DOTA style. Who would want to start a clash with half his hp? If a good team can kill you with your hp bar full, what more if you have much less. Still, Huskar would do well as a killer. He doesn't have much synergy with any teamplay style but he can be a ganker who can easily be a powerhouse late-game. There are not many heroes in DOTA who can gank a lot early and still be able to be a decent dps-er.

Where can I find replays?

I suggest you go to Dota Commentaries.com as they don't just give you replays, they also give some analysis of the item builds, warding and team play. Not to mention, they are commentating competitive games and not your ordinary pub games where any build would work.

If this guide has helped you in some way, please feel free to comment and/or rate my mini-guides. Thanks a lot!

Good luck! And remember, reading guides gives you ideas, but, only thru constant practice does one achieve greatness.