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

Broken Bloodstained Bow

NPC	Level	Zone	Chance
Bloodtalon Scythemaw	8 - 10	Durotar	23.9%
Bloodtalon Taillasher	6 - 8	Durotar	23.4%
Corrupted Bloodtalon Scythemaw	10 - 11	Durotar	21.2%
Sunscale Screecher	13 - 15	The Barrens	8.18%
Sunscale Lashtail	11 - 13	The Barrens	5.48%