Black Cat
This NPC can be found in Shattrath City (5), Blade's Edge Mountains (5), Southern Barrens (4), Shadowmoon Valley (4), Silvermoon City (3), Feralas (3), Felwood (3), Blasted Lands (3), Northern Barrens (2), Twilight Highlands (2), Ashenvale (1), Tanaris (1), Elwynn Forest (1), Western Plaguelands (1) and Arathi Highlands (1).