The gronkle is a boulder class dragon. This dragon is the most toughest and slowest dragon know to Vikings.

It has a limit of 6 shots and it has a wingspan of 18 feet.

It's fire type is heptane/oxygen+rock= lava blast.

It's size is 14 feet and it's weight is 5724 Ibs.

Abilities:
Bump scatter blast
Immunity to dragon root
Creating gronkle iron
Rechargeable firepower
Flying backwards and in all directions
Hovering and dropping in the air

Attack: 8
Speed: 4
Armour: 20
Fire power: 14
Venom: 0
Jaw strength: 8
Stealth: 5

Features:
Large body
Bumps in body
Small wing to body ratio
Clubbed tail
Shape canines
Blunt nasal horn

Colours:
Varies from brown
Rose
Blue
Beige
Purple
Green
All have a secondary colour for their bumps and pale underbelly.

Diet:
Rocks
Fish
Sheep

Habitats:
Forests
Caves

Trainable:
Yes