Item from The Lord of the Rings by J.R.R. Tolkien
A hundred-foot battering ram with a wolf's head of black iron — named after Morgoth's war-hammer, swung by trolls, built for one purpose: to break what has never been broken.
Grond is not a subtle weapon. It exists to solve a single problem: the Great Gate of Minas Tirith, which has never been breached in the city's history. Sauron had it built specifically for this moment — a siege engine of such scale and sorcerous potency that it could break the unbreakable. The name is deliberate provocation: Grond was the name of Morgoth's great mace in the Elder Days, the weapon that cracked the earth. Naming a battering ram after it is a statement of intent. When Grond strikes the Gate, the sound is felt more than heard — a concussion that rattles teeth and shakes dust from walls three levels up. Each impact is accompanied by a flash of dark fire from the wolf's mouth. It took three strikes to break the Gate of Minas Tirith, and when the iron shattered, the sound of it echoed across the Pelennor like the end of an age. The Witch-king rode through the broken gate alone, and no one stood against him — because when Grond breaks your door, your courage breaks with it.
A massive battering ram, roughly one hundred feet long, its head forged in the shape of a snarling wolf wrought in black iron. Spells of ruin are laid upon it. The shaft is a tree-trunk bound with iron bands, hauled on great wheels and swung by mountain trolls in chains. Fires burn in the wolf's mouth, giving it the appearance of a living creature from hell. The ground shakes when it moves.
Also known as: Grond, the Wolf's Head, the Hammer of the Underworld