Hello MMOwned in this post I will tell you how to get the Feats of Strength Achivement Onyxia's Lair (Level 60) as a hunter in 3.2.2.
Step 1. The Molten Core
Venture into the molten core and kill Majordomo executus adds and loot the chest. According to Wowhead Flamewaker Healer and Flamewaker Elite can drop it too. What we are after is this Ancient Petrified Leaf. I don't know the droprate but i was told it's 50% from the chest.
Step 2. The Ancient Leaf
Accept the quest and make your way to felwood and find Vartrus the Ancient Cords: 48.24 and turn in the quest. Accept the quest An Introduction and complete it. When it's done pick up the quest Stave of the Ancients from Vartrus the Ancient and the quest A Proper String from Stoma the Ancient
Step 3. Stave of the Ancients - Artorius's Head
Venture to Winterspring and find Artorius the Doombringer His name is Artorius the Amiable when hes in his tauren form use this macro to find him
when you have found him talk to him and then kill him but don't use your pet you must kill him solo that means no help from anyone./Target Artorius the Amiable
Step 4. Stave of the Ancients - Simone's Head
Fly down to Un'Goro Crater and find Simone the Seductress Her name in troll form is Simone the Inconspicuous use this macro to find her
Talk to her and then kill her, don't use your pet./Target Simone the Inconspicuous
Step 5. Stave of the Ancients - Solenor's Head
Take the flight to Silithus and find Solenor the Slayer name in gnome form is Nelson the Nice use this macro to find him
Talk to him and kill him, don't use your pet./Target Nelson the Nice
Step 6. Stave of the Ancients - Klinfran's Head
Venture to Burning Steppes and find Klinfran the Crazed name in human form is Franklin the Friendly use this macro to find him
Talk to him and kill him, don't use your pet./Target Franklin the Friendly
Step 7. A Proper String
Kill the Black Dragonspawns around the area until Mature Black Dragon Sinew drops (i guess you can kill any of the other dragons in the area too for it)
Step 8. The return of a dragonslayer
Return to Vartrus the Ancient and Stoma the Ancient in feelwood and turn in the quest and gratz to your achivement!.
Screenshot: