Phase 4: November ??? - November ???
Elemental Invasion (Part II)The denizens of the Elemental Plane have finally mustered enough strength and courage to attack your capital cities. The Horde will have to defend Orgrimmar and Thunder Bluff, while the Alliance will need to take care of Ironforge and Stormwind. Every 2-3 hours NPCs in those cities will yell out, informing all players that an invasion is about to begin. This warning will start a 5-minute window, during which players will have to haul sandbags or barricades to locations indicated by red markers. Low-level players will be instructed to take one of the portals in the cities and escape to safety. After all the barricades have been placed, or after 5 minutes have expired (whichever one happens first), the elementals will being their attack.
Before you even being battling the invaders, talk to one of the Earthen Ring Defenders located throughout the cities, and get your Earthen Ring Unbinding Totem - you will need it. The objectives of the event are straight-forward:
* Free all citizens. At the beginning of the invasion, the elementals will trap a number of citizens in every district of the cities. You need to find them and use your Totem to free them. Your UI will indicate how many citizens remain trapped in each district.
* Defeat all elementals. Every rift will spawn exactly 32 elementals. YouR UI will show you how many rifts remain standing in each district. Make a good use of your Totem if a fellow player gets imprisoned. * Beat the clock. You have one hour to complete all this.If you succeed at closing at least one of the rifts, all players who participated in the defense will gain a buff appropriate to the type of elementals you just repelled. Also, every city will be attacked only by two types of elementals, so if you want to earn your Tripping the Rifts by defending your cities, you will need to defend each one at least twice.
* Earth: Attacks Ironforge & Orgrimmar. Buffs with Earth Powered on successful defense. * Fire: Attacks Ironforge & Orgrimmar. Buffs with Fire Powered on successful defense. * Water: Attacks Stormwind & Thunder Bluff. Buffs with Water Powered on successful defense. * Wind: Attacks Stormwind & Thunder Bluff. Buffs with Wind Powered on successful defense.And finally, successfully defending a city will allow you to take the fight to the enemy! A rift will open from the city you just defended to the hideout of a minor elemental lord. You will be able to queue for them through the Dungeon Finder just like you queue for seasonal bosses. All of the elemental bosses drop items of level 251, equivalent to ICC10 loot.
http://www.wowhead.com/guide=cataclysm&prelaunch#twilights-cult-elemental-invasion