A large part of World of Warcraft revolves around doing dungeons and raids, in order to get better pieces of armor and weapons. After the launch of World of Warcraft acquiring items from raids would be left to chance only, and you might go for months without seeing an items drop from a specific boss. This all changed in the first add-on for World of Warcraft with the introduction of badge loots, each boss in a raid instance or heroic dungeon would drop a badge of justice. In Wrath of the Lich king, the second expansion of World of Warcraft badge system got an upgrade, but instead of calling them badges, the name was changed to emblems. World of Warcraft emblems of heroism drop from heroic dungeons and 10 man raid raids. Blizzard has implemented a better version of these also which are named emblems of valor, but we will discuss those at another time.

World of Warcraft emblems of heroism allow players to buy epic quality items with the same item level of naxxramas 10 man. They fairly easy to get as they drop from heroic 5 man dungeons also, and from the lower difficulty raid in naxxramas 10 man. Here are the exact drop amounts you can get from each heroic instance and raid zone:

Heroic Dungeons:
(3 emblems) Azjol-Nerub: Azjol-Nerub
(3 emblems) The Violet Hold
(3 emblems) Utgarde Keep: Utgarde Keep
(4 emblems) Drak'tharon Keep
(4 emblems) The Nexus: The Oculus
(4 emblems) Ulduar: Halls of Stone
(4 emblems) Ulduar: Halls of Lightning
(4 emblems) Utgarde Keep: Utgarde Pinnacle
(5 emblems) The Nexus: The Nexus
(5 emblems) Azjol-Nerub: Ahn'kahet: The Old Kingdom
(5 emblems) Gundrak
(5 emblems) Caverns of Time: The Culling of Stratholme (includes Infinite Corruptor.)
Normal Raid Instances:
(3 emblems) Naxxramas: Frostwyrm Lair
(3 emblems) Naxxramas: The Arachnid Quarter
(4 emblems) Naxxramas: The Construct Quarter
(3 emblems) Naxxramas: The Military Quarter
(3 emblems) Naxxramas: The Plague Quarter
(2 emblems) The Nexus: The Eye of Eternity
(5 emblems) The Obsidian Sanctum
(2 emblems) Vault of Archavon (Wintergrasp)
Other means to acquire World of Warcraft Emblems of Heroism:
(2 emblems) Proof of Demise (aka. Daily Heroic)
(5 emblems) Satchel of Spoils (Sartharion drop)
One you have acquired the World of Warcraft emblems of heroism, you can purchase epic quality items from different vendors around Dalaran (main city capital in Northrend). You can also purchase heirloom items, which can be mailed over to any of your characters on the server, this way you can equip your lower level alt characters with better piece of armor and weapons to help them level up a lot faster.
Here is a short list of some items you can purchase with emblems of heroism:
[Jorach's Crocolisk Skin Belt]          Waist      40 Emblem of Heroism
[Vine Belt of the Woodland Dryad]     Waist      40 Emblem of Heroism
[Beadwork Belt of Shamanic Vision]     Waist      40 Emblem of Heroism
[Vereesa's Silver Chain Belt]         Waist      40 Emblem of Heroism
[Magroth's Meditative Cincture]     Waist      40 Emblem of Heroism
[Verdungo's Barbarian Cord]         Waist      40 Emblem of Heroism
[Waistguard of Living Iron]         Waist      40 Emblem of Heroism
[Crygil's Discarded Plate Panel]     Shield      35 Emblem of Heroism
[Grasscutter]                 1h Sword 50 Emblem of Heroism
[Handbook of Obscure Remedies]         Off-hand 25 Emblem of Heroism
[Lillehoff's Winged Blades]         Thrown      15 Emblem of Heroism
[Pride]                 Fist     50 Emblem of Heroism
[Protective Barricade of the Light]     Shield      35 Emblem of Heroism
[Rolfsen's Ripper]             Dagger      50 Emblem of Heroism
[Ward of the Violet Citadel]         Off-hand 25 Emblem of Heroism
For complete list of items that you can purchase with World of Warcraft emblems of heroics please visit http://www.wowwiki.com/Emblem_of_Heroism

World of warcraft is a massive multiplayer online role playing game, which can only be played online. World of warcraft revolves around the lore of Azeroth and it involves the players in the lands intrigues and wars. As with most massive multiplayer online role playing games, World of Warcraft requires you to pay a monthly fee, which is supposed to cover the server and maintenance expenses. Blizzard, the company responsible for creating and developing Wolrd of warcraft is offering two ways of paying the said fees. With the first option you can setup and recurring fee via your credit card (they accept every major credit card issuer), and the second option you have, which is probably of most interest to you since you are reading this article, is paying with a pre-paid game card.
You may ask yourselves what exactly are world of warcraft pre-paid game cards, and in fact you should know that world of warcraft pre-paid game cards work almost in the same way as a pre-paid card for your mobile phone. You should be able to purchase one from the same place you bought the actual game, ass Blizzard has made sure to distribute world of warcraft pre-paid game cards to most large retailers around the world. World of warcraft pre-paid game cards are a solution for people who do not own a credit card, and don't feel comfortable giving out their credit card details over the internet in fear of identity theft.
"The World of Warcraft Pre-Paid Game Card is a convenient payment option for those who prefer to pay cash for their World of Warcraft subscription and is available at most stores where computer games are sold."
Now that we have cleared up the reasons you might want or even need to pay with a pre-paid game card we can continue on how to actually use it. But before we go you should know that paying your game time via a pre-paid game card can be a bit more expensive than paying your subscription with an actual credit card. Blizzard offers small discounts if you decide to subscribe for 3 or 6 months at a time, which makes it more affordable than using the said pre-paid game card.
When you have purchased a game card you have to scratch the highlighted (as seen on the image) area to reveal your code. Then you will log on to your account, on the World of Warcraft website and go to the "Add a Game Card" section where you will input the code exactly as it is written in the box on the website. You should also note this warning regarding game cards: "As soon as you scratch off the grey strip on the back of your Pre-Paid Game Card‚ the card is considered "spent." While your card will not be activated until you input the code into the field below‚ the card cannot be returned after it has been scratched."