Elemental Gravity Dragon

The Elemental Graivty Dragon is a creature that appeared in the fourth season of LEGO Ninjago: Masters of Spinjitzu. It is one of the dragons known to exist in Ninjago. It is Gravis's Elemental Dragon

The Day of The Dragon
Gravis unlocked his Graivty Dragon along with the other Elemental Masters to get back to Ninjago in order to stop the Anacondrai Cultists.