Leeroy

Golbin Mekkatouge- its a fun card, this card is ok in terms of cost and health attack ratio, however there is better cards like Archmage that could add synergy to your deck.

raid leader- very poor card in terms of health attack return, for 3 mana, this 2/2 creature could only be used in one situtation where you have overwhelming board presence, if it is a lone drop or the only card in your hand, its as useful as wisp.

booty bay guard.- idea of taunter is to hold its presence on board, 4 health for 5 mana is never going to cut it. if you crave defender, use sen'jin shieldmaster.

goldshire footman- you are an mid early game deck, having this card slows ure damage output by alot. so if you really crave one mana drop, get elven archer

voodoo doctor- same reason as footman

dragoning mechanics- well if you want cards like this, silver hand knight works better

 This is one hero, where Edwin VanCleef is her class specific legendary. So the idea of this game is to create a deck of 30 cards to defeat an opposing player that has 30 life too! easy peasy   

Well its easy to think Hearthstone is a simple game. And on some level it is, however it gets dastardly complicated as your knowledge of the game improve. but here are some basic terminology of the game you have to know and which of some i might use at the later part.

Mulligan - At the start of the game, you are given the option to replace some of all of your starting hand, that's mulligan.

Play - A play means an action or set of action one would carried out in given situation. For an example, during the 4th turn, you could do a two 2 Mana-drop play or a 4 mana drop play. A play could be considered a combination of cards, most plays could be considered as good or bad depending on how well you achieve towards a given purpose, for example board clear or neutralizing a threat

Board control - This usually refers to a situation where one of the player has the 'dominance' over the board (where you drop monsters) Usually it means that the player who had the dominance would have creatures down on board whereas the opponent does not. Having Board control is highly crucial to game play as it would most likely to be a lost case if you lose. Board control. 

Example of board control - The enemy has 2 (3 hp/ 3 attack) creature, and you have none, during your turn you drop a (4/3) creature, however due to summoning sickness , you could not attack. After which the enemy could use one of his monster to kill you and summon one more. So he is technically trading a card   for a card, where he would try to make sure you do not have monster on board.

Card Advantage - Card Advantage refers to a situation where one player has more cards then the other, in general, players having card advantage have more option of dealing with different situation.

Mana Curve - The mana curve means the way the deck is build according to the mana cost of each card. Mana curve is important for the smoother turn drops and efficient draw RNG.

Example of bad mana curve - A deck with maybe more then 16 cards of 6 mana and above. (unless you are druid) where most of the time you would be only drawing high mana requirement cards, which result the first few turn not having any thing to use. which could equate to lost of board control

Example of Good mana curve - A deck with an even distribution would have a better RNG mulligan and draw that allows you to draw low mana drops and draw into higher mana drops as the game goes on, allowing an smoother play. However some decks thrive on low mana Curve ( zoo warlock) to high mana Curve ( Ramp druid). However they are quite specific based decks.

Early/Mid/late game - To put it simply Early game are turns 1-3. Mid game turns 4-8. Late game turn 9 and more

RNG - This stands Random number generator, Where there are some cards that produces effects that are random, examples of cards such as Knife Juggler to Ragnaros.

Synergy - Synergy is one of the important factor of a deck, Decks with Synergy between cards allow cards to trade more efficient and allow beneficial interaction between each other. Thus increasing the individual value of cards,

Example of Synergy- If you have a  cheap 2 attack minion on board, and the enemy used all his mana to drop a 4 hp minon, and you have Dark iron Dwarf ( battle cry, Give a minon +2 attack this turn.) if you cast it on the 2 attack minion, it means u have effective increase the value of this cheap card by trading it with his 4 hp minion at a higher level.

Trading - Refers to situation where a minion attacks another minion and both of them dies, favorable trading would be an example from Synergy.

Drawing power - Have you ever wonder why some of the time in the game, you run out of card and have to rely on turn draw which resulted 1 card play per turn? it is most likely you lack drawing power, cards that allows you to draw cards. for example Acolyte of pain. To be able to maintain a good size hand, you would need good drawing power which results in hand advantage, which means more solution, more combos.

A friend once told me, HS in general could be split into 3 kind of decks - Aggro , Control , Combo.

I would try to define these 3 groups into further sub groups, but that's for another day!

i would be linking some of the decks examples here. however they are just examples to follow from! you can change it to compliment your play style.In this game, there is no deck that could be defined as the best. it is how you play it.

so first off-

AGGROO (RAWR) - As the title would describe, aggro decks, or aggressive decks functions on having monsters swarming on the board, in bid of trying to maintain board control. It is usually the easiest to create and play with as the method of this play is straight forward. The main idea of this deck is to just dump monsters to control the board and hit his face and hope he dies before you. 

Classes that play good aggressive decks are Hunter, Warlock, Paladin, Rogue, Shaman. 

Examples of such decks -

Zoo lock - http://hearthstone.i...aggro-rush-deck

cycle hunter - http://reynad.com/de...er#.U4eJuvmSx38 ( could be outdated due to the nerf on unleash)

Beat your face with sword paladin - http://hearthstonepl...-paladin-aggro/

Tempo Rogue - http://hearthstonepl...rogue-sipiwi94/

aggro shaman - http://2p.com/515889...ck-by-flord.htm (abit outdated)

video of a zoolock made simply ( this is not even the best version i feel) 

CONTROL - Like it said, this types of deck focus on controlling the board, you do not see them drop much monsters, however they use spells and monster with high trading values to dominate you. They are mostly reactionary decks, where they would react to the enemy's play and counter it. Whilst maintaining board control and hitting you slowly with one huge ass creature. Decks like this require more define sets of cards as compared to Aggro decks.

Classes that play good Control decks. Warrior, warlock, Priest, Druid, Mage, Shaman. ( to be honest, most decks could be made into control decks. beside paladin.)

Examples of some famous decks

very commonly used control deck ( newcomers beware, they do very well against aggro decks) Its advisable to understand how it work.

THE HANDLOCK...

http://www.hearthpwn...endary-handlock

http://hearthstonepl.../list-handlock/

Some others -

Control warrior -http://www.gosugamer...warrior-revised

Control Priest - http://hearthstone.b...priest-control/

Amaz Priest - http://www.hearthhea...amaz-f2p-priest

Ramp druid - http://www.hearthpwn...dary-druid-ramp

aggro control mage - http://www.hearthpwn...iticism-welcome

tides of time shaman - http://www.hearthpwn...-control-shaman

some may be out of date, but the idea could be still there unless the meta shifted.

COMBO!!!! - The name says it all. This type of deck relies HEAVILY on synergy between cards and Drawing power! This kind of decks requires one of the higher skill cap. where one mistake could delicate if you win or lose the game, Combo decks rely on have a certain set of cards to combine and deal insane amount of damage.

example - 

One of the most famous decks is the miracle rouge..

there are tons of variation to this build.

here are some samples 

-http://www.hearthpwn...7-miracle-rogue

-http://www.hearthpwn...o-miracle-rogue

other combo decks. 

myalgo rogue - http://www.hearthpwn...-rogue-elegance

combo priest - http://www.hearthpwn...34-combo-priest

to be honest, rouges are the best in combo, seldom can other class compete with them. =]

Overall

Aggro beats Combo, Combo beats Control, Control beats aggro. However it does not mean a Control deck will always win an aggro deck, it just has a more favorable odds. 

The way you play is more important, As different type of decks have different objectives and path to win the game, thus there is no one deck that is unbeatable. Just one unbeatable player with good decks.

VALUE

Spells 

Deduction ability!

Others!

Getting cards you need from packs in game are hard, as each pack cost 100 gold, and if you do not intend to spend any real cash on it, your card pool is quite limited, so crafting is the way to go. 

this is a good crafting guide i found . 

Whereas for people who spend in game, i suggest always get 40 packs, its all or nothing, as compared to the players who buy 1-7 packs now and then, they do not realize they are spending more then they think. So if you are addicted to open card packs, do it at one go, or u tend to spend more money =] 

Gold from achievement ( one time only ) http://hearthstone.w...ki/Achievements

To earn gold, it is better to use the a deck you prefer and challenge yourself in ranked match, where you will actually know how good you are with your deck, and with every 3 wins. you earn 10 gold =]

My advice is to play Arena to earn gold to open decks once you are familiar with the game.