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

Underbelly Whelp Scale

NPC Level Zone Chance

Black Dragon Whelp 17 - 18 Redridge Mountains 80.0%

Snarlflare Rare 18 Redridge Mountains 80.0%
Quest Level Side

Underbelly Scales 18 Both

NPC	Level	Zone	Chance
Black Dragon Whelp	17 - 18	Redridge Mountains	80.0%
Snarlflare Rare	18	Redridge Mountains	80.0%