Earth Elemental/1.03

Earth Elemental are elementals.

Dwarves
Slow, tanky and rather huge, these are some of the best building wreckers the game can offer, doing quadruple damage to structures. It's quite difficult to actually get them to a base, but once there, they can destroy it with little time. They are summoned by Runelords with 100 mana, but due to the natural building-destructive power of the Runelord's fiery attack, Earth Elementals aren't really needed for the immense damage they deal to buildings and thus the mana is better spent on the Doomstones spell, which can actually be cast twice for less mana than the cost of summoning an Earth Elemental. However, Earth Elementals can take quite the beating and can be used to sponge damage / draw fire away from the Runelords if you have no other units available to do this.

Benefits from Armorer and Mithril researches.

Temple
Slow, tanky and rather huge, these are some of the best building wreckers the game can offer, doing quadruple damage to structures. It's quite difficult to actually get them to a base, but once there they can destroy it with little time.