Items, NPCs, quests, objects and spells of patch 1.12.1, read live from the realm itself.

Gem of Cobrahn

NPC Level Zone Chance

Lord Cobrahn Elite 20 Wailing Caverns 100%

Cobrahn Snake Form Elite 1 100%
Quest Level Side

Leaders of the Fang 22 Both

NPC	Level	Zone	Chance
Lord Cobrahn Elite	20	Wailing Caverns	100%
Cobrahn Snake Form Elite	1		100%