As a boulder class dragon, the Catastrophic Quaken literally is what it eats - as it enjoys the consumption of rocks. This dietary preference is the cause for its tendency to reside in rocky terrain where it can roam afoot and pick up sustenance as it travels. Strong and hulking, this dragon relies on its size as the ultimate defense mechanism. When threatened, its immediate reaction is to enter protective mode and roll into a ball like a giant armadillo. Once secured into this position, it quickly takes the offense, smashing the ground to create shockwaves so powerful they will knock other dragons down whether they are on land or airborne. A lack of human interaction has made these dragons cautionary over time.
Gronckles are heavy and slow but they can pack a punch. These dragons eat boulders and turn them into blazing balls lava to shoot at enemies. Sometimes when they eat more than one type of rock they can create a new substance in lava form.
Like a Gronckle, the Hotburple also makes lava slugs out of molten minerals, but he prefers iron ore over the Gronckle's love of rocks. As such, he eats the scraps around Gobber's stall and keeps the forge fired up with molten loogies. Personality wise, he's like a walrus -- a loud, fussy, lazy lay-about who snores obnoxiously and easily falls asleep at any given moment, even while flying. He's always in the way in Gobber's stall and he's the perfect match for Gobber's put-upon attitude. They banter like an old married couple. Otherwise, he's a lot like a Gronckle in most other ways.
Whispering Deaths have poor eyesight and a terrible sense of direction that often gets them lost, they do however more than make up for these weak points with their multiple rows of buzz-saw teeth that can bore through any solid material, including rock. It is this signature drilling power that creates the hushed rumbling sound which always announces a Whispering Death before it bursts out of the earth.
Unlike the Whispering Death, this dragon has no aversion to sunlight. Young Screaming Deaths are even drawn to bright light, which will wear off as they age. It shoots large spines from its tail and can breathe massive amounts of fire in a single blast, but the Screaming Death’s real strength is its insatiable appetite. Like the Whispering Death, the Screaming Death likes to tunnel, consuming sea stacks and decimating entire islands. You can’t really defeat a Screaming Death. It’s too fast, too angry, too powerful. The best you can hope to do is find a way to lure it somewhere else. One is born once every hundred years, they always eventually return to their place of birth to nest.