Temple of Ahn’Qiraj with Tier 2.5 gear appears in phase 5.Here some features of the raid:

There are 40 players in a raid.
100 nature resistance is highly recommended.
4 tanks with at least 200 nature resistance (250 more for Princess Huhuran).
2 warlock “tanks” with at least 150 shadow resistance and upwards of 8,000 health are required for killing Twin Emperors.
Raid members should have primarily rare and epic quality gear.

The Gates of Ahn’Qiraj are opened by Scepter of the Shifting Sands. The person who opens the gates will also get Black Qiraji Resonating Crystal.

For this chain you need:

20 Goblin Rocket Fuel
20 Deeprock Salt
20 Arcanite Bar
10 Elementium Ore
10 Azerothian Diamond
10 Blue Sapphire

Green Scepter Shard consists of 5 quests:

You can do these three in any order you wish:
1. Stewvul, Ex-B.F.F.
Go to Silverpine Forest to the Gilneas Gate and click on the Inconspicious Crate to complete the quest.

Scrying Goggles? No Problem!
In Molten Core kill the trash mobs to get Narain’s Scrying Goggles, then return to Narain Soothfancy.

2. Never Ask Me About My Business
Talk with Dirge Quikcleave in Gadgetzan

The Isle of Dread!
For this part you better get the group. Go to the Isle of the Dread in Feralas and kill Lord Lakmaeran to get the Lakmaeran’s Carcass, then continue to kill mobs to get 20 Chimaerok Tenderloin.

Dirge’s Kickin’ Chimaerok Chops
Bring 20 Goblin Rocket Fuel and 20 Deeprock Salt to Dirge Quikcleave.

Return to Narain
Return to Narain Soothfancy and complete the quest.

3. Start from Meridith the Mermaiden
Deliver Meridith’s Love Letter to Narain Soothfancy.

Treasure of the Timeless One
How to: When the gates are opened, Jonathan the Revelator will appear next to the gong, anyone that completed the questline with Up to 60% off world of warcraft classic gold at any time (even after the gates are opened) can complete this quest and choose one these awards: Fang of Korialstrasz, Shadowsong’s Sorrow, Runesword of the Red and Ravencrest’s Legacy.