Talk:Opal Dragon/@comment-24622077-20141008154548/@comment-25611857-20141008155343

The only thing you need to do is to breed the Mud Dragon With the Lava Dragon again and again until you get it. I do not think you need to feed them some more, because dragons will have a higher chance of being bred if the dragons that are being bred is above level 11 (so level 13 and 15 is enough). As far as I know, the dragons do not need to be at the same levels. It's a good idea to try to breed the Opal Dragon in both the Island and the Cave, because it will give you a higher chance of getting the Opal Dragon.

I don't think that either of the Devices have a "better" random number generator.