Arthas' Tears
Found in Western Plaguelands, Eastern Plaguelands, Razorfen Downs.
Western Plaguelands
Eastern Plaguelands
Item Count Chance 
Arthas' Tears1-3 100% 
Fel Creep1-3 50.0% Zone Spawns Coordinates Western Plaguelands 37 46.8, 59.2·53.3, 44.3·49.0, 79.9·65.7, 57.2·42.4, 16.7·50.8, 63.3·57.2, 53.9·46.5, 47.3·62.9, 49.2·41.0, 66.9·44.1, 50.4·51.0, 47.7 … Eastern Plaguelands 36 20.5, 86.3·31.0, 75.7·50.7, 44.6·67.3, 42.5·37.6, 31.8·54.3, 26.3·23.3, 25.3·65.9, 33.7·45.9, 71.7·27.3, 23.5·25.8, 89.1·66.0, 70.3 … Razorfen Downs 11 instance