Prompt: The Vaultbound Behemoth is an ancient and colossal monstrosity, its immense form seemingly forged from the very stone and earth around it. Standing at an awe-inspiring height of 30 feet, its hide is encrusted with centuries-old sediment, giving it the appearance of a living relic. Massive, jagged stones protrude from its back, resembling a natural fortress fused with the creature's body. Its eyes, glowing with an otherworldly, dim light, betray an intelligence that belies its primal nature. Chains of ethereal energy wrap tightly around its limbs and torso, as if attempting to bind the creature's formidable power. Each step of the Behemoth resonates like a seismic event, causing the very ground to tremble beneath its colossal weight. The Vaultbound Behemoth's maw is filled with razor-sharp teeth that could crush boulders effortlessly. Its claws are like ancient, weathered blades, capable of rending through the toughest armor. A long, muscular tail sways behind it, ending in a heavy, spiked appendage that serves as a devastating weapon. As it moves, the Behemoth emanates an aura of ancient magic, and the air around it seems to ripple with a subtle distortion. The creature appears as if it has been trapped within the very walls of a mythical vault for eons, and the energy that binds it pulses with an otherworldly power that speaks of forgotten secrets and unimaginable strength. Facing the Vaultbound Behemoth is like confronting a living fortress, a guardian of ancient mysteries waiting to be unleashed upon those who dare to disturb its slumber.