Board Thread:Dragon City Gameplay Questions & Answers/@comment-26509210-20150618165319/@comment-779290-20150618175744

Just keep trying. It is about a 25% chance; I have gotten them after anywhere from 1 to 20 tries. Also, there is a timer involved which you have to wait for. If by third level you mean the Bigface dragon, there is a pool of 2 and a timer of 4 hours. This means every 4 hours one drone is added to the pool if it is less than 2. If there are any in the pool you have a chance of getting one. However, the countdown timer resets to 4 hours every time you get a drone.