Warlocks unite and rejoice! Gone are the days of Nightmare Vine and Imbued Vials! Gone are the days of Auction House purchasing of Superior Wizard Oil. The new and improved Master Spellstones are the weapon enhancement of choice.
Binds when picked up
Use: While applied to target weapon it increases damage dealt by periodic spells by 1% and spell haste rating by 40. Lasts for 1 hour.
This was released with the 3.0.2 patch. It does not count as a conjured item and does not disappear when you log out. They are soulbound so you can't make a profit with them but this will surely save us a little gold.