Stoneheart is an evil Rock Lord from the planet Quartex. Large, mean and unpredictable, he is feared by all Rock Lords, good and evil. Even Magmar thinks twice about crossing him.
GoBots: Battle of the Rock Lords
Stoneheart was part of Magmar's evil Rock Lord army. He was defeated, along with the rest of Magmar's troops by the combined forces of Bouler's tribe and the Guardians.
Echoes and Fragments
- Stoneheart (Evil)
- Rock Type: Slate - a cold hard rock symbolic of Stoneheart's personality.
- His Weapon is the Slam Ray