The Renegade cave smasher is a type of melee attacker that is unlocked through trade of runestone (along with it's counterpart the Renegade cave hunter) from The Underworld. They can also be sometimes gotten as a VIP reward. These troops have the highest melee attack power, making them very strong units. But they come at a great cost: 8 food production cost per unit.

Renegade cave smasher