Dark Rift Dragon

Obtaining
Players received eggs as a reward for casting Dark Magic during the Dark Magic Event in October and November 2013.

The can be bred using any two dragons, in either order, containing the Dark and  Light elements, at the Breeding Cave/Epic Breeding Island.

Breeding Multiple Rift Dragons
The can breed with another Dark Rift Dragon or a Light Rift Dragon for a chance to breed either another Dark Rift Dragon or a Light Rift Dragon.

Earning Rates
Coin per minute:

Dragon Earning Rates without boosts.

Boost Calculation Guide to use with the page linked above.

Possible References

 * The 's selling price is equal to the speed of light, which is approximately 186,282 miles per second.
 * The s design resembles the banishees from the movie "avatar"