Rain Dragon

Breeding
The can be bred by pairing two basic dragons (one Water and one Air) or two dragons that combine Water, Air, and at least one other element at the Breeding Cave/Epic Breeding Island.

Breeding a Water Dragon with an Air Dragon can also result in a Fog Dragon.

Earning Rate
Coin per minute: Level 1: 8 / Level 10: 51

Dragon Earning Rates without boosts.

Boost Calculation Guide to use with the page linked above.