Rolling Shield of Skoraeus (5e Equipment)
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Wondrous item, legendary (requires attunement by a creature that knows Giant)
Long ago, a tribe of humans aided the stone giant followers of the god Skoraeus. In return, the giants forged the Rolling Shield from the stone heart of their mountain. The shield is 5 ft' in diameter and is 1 ft. thick. On its face is engraved a likeness of Skoraeus, and on the back there is an enscription: 'Friend beside you, guide it and it shall hide you.' Being made of stone, the shield is incredibly heavy, and a creature must succeed on a DC 30 Strength (Athletics) check to lift it.
Roll. As a bonus action, an attuned user may speak the shield's command word ('friend' in Giant) move the shield up to 30 ft. along the ground. Its speed is halved in difficult terrain, and it sinks in liquids and soft ground (e.g. marshland). The shield counts as cover. It cannot be knocked onto its side unless its attuned user allows it, or is unconscious.
Crush. If the shield moves into a creature's space, it must make a DC 15 Dexterity saving throw. On a success, the creature jumps out of the way. On a failure, the creature takes 4d10 bludgeoning damage and is knocked prone.
Divination. While touching the shield, an attuned user may cast divination as a ritual. Instead of contacting their own deity, however, they contact Skoraeus, and his response is temporarily engraved on back of the shield. He is typically curt with races other than humans, giants and giant-kin, and his bias towards those races may skew his response.