Enchant 2H Weapon - Massacre

Permanently enchant a two-handed weapon to increase attack power by 110. Requires a level 60 or higher item. It also gives your weapon a dripping blood effect.

Tools
Runed Titanium Rod

Source
The Formula: Enchant 2H Weapon - Massacre can be purchased from Vanessa Sellers, located in Simply Enchanting in Dalaran for 10 Dream Shard.