Blacksmiths convert Bars of various metals and other, more exotic materials into Melee Weapons, Heavy, Mail or Plate Armor, Skeleton Keys needed for opening Locked Chests, Metal-based Trade Goods (Rods and Belt Buckles) and some Item-Enhancements, like Shield Spikes, Weapon Chains and Sharpening Stones. Blacksmithing is a good choice for Plate Classes, which means that Paladins and Warriors will often opt to skill it up. There are two specializations available for Blacksmithing, with one of them having three further specializations (just like with Leatherworking, you have to choose one of those specializations, and can not change it, unless you want to skill your Blacksmithing again from scratch):
- Weaponsmithing (further specializations: Axesmith, Swordsmith, and Hammersmith) - Allows a Blacksmith to craft various powerful Weapons, including Blackfury (Lvl 60 Polearm with bonuses to Stamina, Strenght, Fire Resistance, and Critical Strike), Dark Iron Pulverizer (Lvl 50 Two-Handed Mace with a slow 3.70 Attack Speed that has a chance to Stun Target for 8 s. on Hit), and Heartseeker (Lvl 58 Dagger with 1.70 Attack Speed, +4 Strenght, and +1% Critical Strike chance).
- Axesmithing - Allows Blacksmith to create Dawn's Edge (Lvl 50 Axe with a 1% Critical Strike bonus), Nightfall (Lvl 60 Axe which has a chance of increasing Target's Spell Damage taken by 15% for 5s), Dark Iron Destroyer (Lvl 60 Axe with +10 Strenght and +6 Fire Resistance), and an Annihilator (Lvl 58 Axe with fast, 1.7 Attack Speed and chance to reduce Target's Armor on Hit).
- Swordsmithing - Allows Blacksmith to create Blazing Rapier (Lvl 51 Sword with a 1.70 Attack Speed, and a chance to Burn Target for 100 Damage over 30 seconds), Blackguard (Lvl 60 Tanking Sword with +9 Stamina and +1% chance to Parry), Sageblade (A Caster Sword with +14 Stamina, + 6 Intellect, +20 Spellpower, and an effect that decreases Target's magical resistances against your spells), and Dark Iron Reaver (Lvl 60 Sword with 2.40 Attack Speed, +10 Stamina, and +6 Fire Resistance).
- Hammersmithing - Allows Blacksmith to create Enchanted Battlehammer (Lvl 51 Two-Handed Mace with +1% Parry, and +2% Hit Chance), Persuader (Lvl 58 Mace with 2.70 Attack Speed, +1% Hit Chance, and +1% Critical Strike chance), and Hammer of the Titans (Lvl 58 Two-Handed Mace with a slow 3.80 Attack Speed, and a chance to Stun Target for 3 seconds on Hit).
- Armorsmithing - Armorsmithing does not have any further specializations, but it requires completing a very long and expensive Quest Chain (much longer that Quests associated with other Blacksmithing specializations). Completing the chain gives you a Glimmering Mithril Insignia (A Trinket that Increases your Armor by 50, all resistances by 10, and provides you with Fear resistance for 30 seconds on use, with a 10-minute Cooldown - very strong PvP item). Armorsmithing allows Blacksmith to craft various High-Level Gear pieces, including, but not limited to Dark Iron Set (Mixed Rare and Epic Plate set that provides Stamina, a lot of Fire Resistance, and some Agility, without any Set bonuses, however - very desirable in the Molten Core Raid), Firey Chain Girdle and Fiery Chain Shoulders (Mail Belt and Shoulders that provide Stamina, Intellect, Spirit (belt only), and Fire Resistance - again, good for Molten Core), Invulnerable Mail (Lvl 57 Mail Chest that increases your Defense by 13 and has a 5% chance to make you invulnerable to Melee Damage for 3 seconds after you are struck in combat once every 30 seconds - this is one of those weird Enhancement Shaman Tank items), Stronghold Gauntlets (Lvl 60 Plate Hands that provide +12 Stamina, +1% Chance to Parry, +1% Critical strike chance, and an Immunity to Disarm - these are great for PvP, thanks to the anti-disarm effect), and Enhanced Thorium Set (Helm, Chest, and Leggings with bonuses to Stamina, Strenght, and Defense).
All Blacksmithing specializations give access to many worthwhile Patterns, but Armorsmithing beats all Weaponsmith specializations when it comes to Crafting Gear for profit.
Note: Blacksmithing is often paired with its corresponding Gathering Profession, Mining.