Board Thread:Wiki Report Corner/@comment-114.79.50.202-20130501142216/@comment-3271569-20130501194544

That's or 11/11/6 or 6/28 or ~%. But in theory it's an lot more since all breedable Category:Ice Dragons will be on the array list to:

So 4 more dragons will be add to dificulty 3 so your result would be: (6/28)/5 or ~% to result a pure ice dragon.

If all slots where unlocked your chance would be (11/33)/5 or ~%