Shards of the Felvine
Level 60 WoW Classic quest. Find the Felvine in Dire Maul and acquire a shard from it. Chances are you'll only be able to procure one with the demise of Alzzin the Wildshaper. Use the Reliquary of Purity to securely seal the shard inside, and return it to Rabine Saturna in Nighthaven, Moonglade.