Iceberg Dragon

Breeding
The can be bred by selecting a water dragon to mate with a cold dragon at the Breeding Cave/Epic Breeding Island.

Breeding a water dragon with a cold dragon can also result in an Ice 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.