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

Cracked Dragon Molting

NPC	Level	Zone	Chance
Crimson Whelp	25 - 26	Wetlands	8.07%
Nal'taszar Rare Elite	30	Stonetalon Mountains	5.36%
Blink Dragon	26 - 27	Ashenvale	4.05%
Wily Fey Dragon	26 - 27	Stonetalon Mountains	3.90%
Flamesnorting Whelp	26 - 27	Wetlands	3.79%