Hearthpwn

          Strategy:

Early game:
hard mulligan for Shielded Minibot, Faerie Dragon, Blackwing Technician or Muster for Battle. Go face, clear the board only if it's necessary. Your aim is to make opponent's life 15 or lower before turn 6-7.

Late game:
build your board with Dragonkin Sorcerer, Dragon Consort, Muster for Battle + Quartermaster or Drakonid Crusher. Use Seal of Champions, Blessing of Kings and Blessing of Might to increase your damage and make 8-9 turn lethal (it can be earlier or later). If you don't have Arcane Golem on hand try to keep one of your minions alive. Your opponent will try to clear the board, so keep some of Seal of Champions, Blessing of Kings and Blessing of Might on hand to finish him. 

         Core cards:

Dragonkin Sorcerer,
It is one of the best cards to deal tons of damage/finish your opponent. It's the best target to use buffs. Effect of this card doesn't sounds very powerful, but that few damage more can win the game.

Dragon Consort
It's like Dr. Boom but for 5 mana. This discount is especially good in 6 or higher turn, because in next turn Drakonid Crusher can be played with Brann Bronzebeard. 

Drakonid Crusher
It's very powerful card, because in 6-7 turn your opponent usually has less than 16hp. You don't need to play it with brann. Don't play without buffs, unless you are far behind from your opponent. 

Blackwing Technician
It's very good card for dragon decks. If you play it in 3 turn, opponent will try to destroy it, and then you have time to build your board with Dragonkin Sorcerer or something else. Because of this card, you should mulligan at least one dragon.

          Replacements:

BRM cards
Unfortunately you need whole BRM, because there are most of core cards of this deck.

Muster for Battle, Quartermaster
These card are not important in this deck, so you can replace them with two cards for early game, and one for late game, for example Leper Gnome, Shielded Minibot and Leeroy Jenkins (I don't have it, so I don't know if it works there) or just Djinni of Zephyrs.

Brann Bronzebeard
It's not important card, you can easly replace it with another Arcane Golem or Seal of Champions.

Azure Drake
It's only draw in this deck, so you should have it.

Equality
This card can win you a game if your opponent has got strong board control, so you must have it. In addition, if have problems with controlling the board, you can replace Leper Gnome or Faerie Dragon with it.

Arcane Golem
This card is a nice way to finish your opponent, but if you play more control, you don't have to have it. However, if you play more aggro, you should have it two times or replace it with Leeroy Jenkins.

          Match-up:

Renolock:
Renolock is good match-up. It doesn't have many cheap control cards, so you can easly build your board. Even if your oppontent plays Reno Jackson, but you still have board control, you can deal 30 damage again. Lord Jaraxxus also is not a problem, because it has only 15hp, and his heropower can't be use in one turn with him.

Handlock:
Handlock up is worse match-up than renolock. This deck has Ancient Watcher and giants, that can be use as taunts and Shadowflame, which can clear the board. You have to destroy your opponent before he draw Lord Jaraxxus and Molten Giant. Always be prepaired to shadowflame, big game hunter and taunts.

ZOO warlock:
ZOO is not a good match-up. It has many cheap minions, so it's hard to build a board. Only defect of this deck is that it doesn't have anything to destroy big minions, so you can buff your ones. Mulligan for Consecration to clear the board.

Face hunter:
Face hunter is one of the worst match-ups. He can destroy you before you deal him 15 damage. It's hard to control the board too, so everything I can tell you about strategy, is that I don't know what to do :)

Mid-range hunter:
midrange hunters are not as bad as face ones. You can face them faster than them will face you, so they will try to clear the board. Always be prepaired to Hunter's Mark and keep some damage on hand. Also pay attention to opponent's secrets, because Freezing Trap and Bear Trap can decrease your damage.

Freeze mage:
Freeze mage is not bad match-up. It doesn't have much minions, so controlling board is easy. Always try to be out of range Flamestrike. If you play with many freeze mages, you should replace something (it can be Quartermaster) withArcane Golem, because it's only way to detroy Doomsayer, when your opponent play it with Frost Nova.

Mech Mage:
Not so hard to deal with. He will be winning at the beginning, but mid-game is yours. To win, you just have to do one thing: Kill this Son Of A Mother Archmage Antonidas as soon as possible :)
If he get more than 1-2 Fireball, it's very possible, that you will die. But don't worry, be happy! Just clear the board and heal with Truesilver Champion if it's possible of course. When you're lower than 12hp and all the weapons are used, go face and pray to RNG gods for good top decks.Drakonid Crusher is especially good, because he can kill Archmage Antonidas  for free and easy finish those retards. Fell free to play him, because he will propably use all his direct damage and Polymorph to kill your midgame. If you are real try hard you can actually hold him in your starting hand
Mulligans are ordinary: Shielded Minibot and Faerie Dragon. 

Secret paladin:
Secret paladin is a really bad match-up. When he plays Mysterious Challenger you have low chance to clear the board. Also you can't go face, because when you attack Noble Sacrifice will activate Avenge and Redemption, later Competitive Spirit trigger, and then your opponent usually has lethal. So you have to control the board from the begining (of corse not too much, because you are aggro/mid-range deck). If you meet many secret paladins, you should replace Faerie Dragon two times with Shielded Minibot and Equality. Mulligan for cheap control cards (Shielded Minibot, Blackwing Technician, Muster for Battle). If you have Equality or Consecration on hand keep them, because you can clear the board, when your opponent plays Mysterious Challenger.

Mid-range druid/Aggro druid
These two decks are really bad match-ups. They can control board with Living Roots, Piloted Shredder, Druid of the Claw and Swipe. They can also deal much damage, for example Force of Nature + Savage Roar. You should play aggro, and destroy your opponent before he use this combo.

Face shaman:
Face shaman is a bad matchup. It's just like face hunter, he can defeat you, before you deal him 15 damage.  Only way to win the game is to trade and pray that he doesn't have any removal or AoE. Buff your minions with Blessing of Kings and Seal of Champions to increase your damage. If you are lucky, you can win it.

Please rate it, because I worked hard to make this guide.

Sorry for my English

Thanks everyone, who rated it!