Even though the tooltip indicates it has a three minute cooldown, it disappears from your inventory when you use it. If the https://vanillawowdb.com/?npc=10290"">(NPC #10290) it releases fails to merge with a https://vanillawowdb.com/?npc=6557"">(NPC #6557) , or if you are unable to kill the resulting https://vanillawowdb.com/?npc=9621"">(NPC #9621) , you must abandon the https://vanillawowdb.com/?quest=4642"">(Quest #4642) and go all the way back to Undercity to pick it up again.