Cosmic wings are rare thats one thing we can all agree on. How rare nobody really knows apart from D3 creators, but we can speculate.

I see from a previous post that certain players beleive that Rainbow goblins have about a 3 percent chance of spawning (some would agree that there is one created in every game instance of D3 so we can also run with the speculation that if you were to farm a known and economical route you would have a 3 percent chance of finding one but there is one somewere in the game 100percent of the time).

This post also states that the spawn rate of Princess Lillian is between 1 and 5 percent. So lets just say Princess Lillianâ€™s spawn rate is 5 percent.

And that Lillian is guaranteed to drop Cosmic Wings 100 percent of the time.

So what we end up with is a formula:.

3=chance of Rbg spawning/locating.

5=chance of Lillian spawning.

100=Cosmic wing drop rate if previous criteria are met.

3Ă·5=0.6

Now im no mathmatician and most likely someone can refine my formula. But as far as i can tell a player has a 0.6 percent chance of finding Princess Lillian and securing a pair of Cosmic wings.

Id like to know what people think. Did i goof up my formula?. Can someone do better?.

Please add in your replies If you have or have yet to locate yourself a pair of these mystical wings. I found mine 2 days ago.