Greenkeep

Greenkeep is a premium dragon that appears in Dragons: Rise of Berk.

Official Description
"Greenkeep keeps green by eating near the algae-slick jetty around the Flightmare's woods. The eerie glow has spooked more than a few Vikings during Dreadfall."

- Dragons: Rise of Berk

Physical Appearance
Greenkeep is completely black with green glowing belly and wings.

Trivia

 * It is strange that the Flightmares let Greenkeep eat the algae considering their territorial behaviour.