This is how probability works: Lets say the droprate of the draconic visage is 1/10,000. In 100 kills, the chance of getting a visage is as follows: (100 C 1) * (1/10,000) * (9,999/10,000)^99 = 0.0099014835 Thats a 0.99% chance of getting a visage in your first 100 kills with the droprate of 1/10,000. Good luck hunting.