So, i'm going to torture you with a little... a litte look into the Legendary weapon; Sulfuras, the hand of Ragnaros.
So far, it's the only Legendary (RED!) wepaon i've seen and heard of, and it needs 1 important thing; US! Blacksmiths!
In order to make this weapon you need:
A) MC farming group
B) 300 Blacksmtihing
C) Plans: Sulfuron Hammer
Okay, going to break it down into two parts, you need the Hammer blacksmithings make, and the Eye of Sulfuras, going to take the hammer first.
To make this hammer you will need:
Sulfuron Ingot 8
Dark Iron Bar 20
Arcanite Bar 50
Essence of Fire 25
Blood of the Mountain 10
Lava Core 10
Fiery Core 10
Get that and make:
Sulfuron Hammer
Binds when equipped
Two-Hand Mace
143 - 239 Damage Speed 3.00
(63.7 damage per second)
Durability 120 / 120
Requires Level 60
Chance on hit: Hurls a fiery ball that causes 83 to 101 Fire damage and an additional 16 damage over 8 sec.
Now, to get this plan is rather complicated, and i'm not entirely sure about where to get it. But the Sulfuron Ingot drops off the MC boss "Golemagg the Incinerator" with a 7.5% drop chance.
Its rumoured that you turn in 1 signot to learn the recipe.
Thats as far as i know, now to the second part.
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Once you get the hammer, you can concentrate on Ragnaros and his eye.
The eye itself is BoP and ONLY drops off the Firelord himself with a drop chance of 5.7%. once you have both, you right click on the Eye and you will get "Quote";
Sulfuras, Hand of Ragnaros
Binds when picked up
Two-Hand Mace
180 - 302 Damage Speed 3.00
(80.3 damage per second)
+12 Strength
+12 Stamina
+30 Fire Resistance
Durability 145 / 145
Requires Level 60
Chance on hit: Hurls a fiery ball that causes 273 to 333 Fire damage and an additional 75 damage over 10 sec.
Equip: Deals 5 Fire damage to anyone who strikes you with a melee attack.