Board Thread:Dragon City Gameplay Questions & Answers/@comment-9183585-20130622211458/@comment-11614292-20130706163355

^ Rarity Boost (or usually called Breeding Boost) is a function appears when you breed 2 dragons (below the "normal breeding" button, and only available when playing as an app of facebook on PC - I think?)

It cost 5 gems to boost the chance to meet the rare/legend/pure dragon, and my question is how much it can boost, and is it worthy.

So some1 plz answer my question above, thanks in advance!