Concelhaut's Crushing Doom

A massive hammer made of raw magic appears above a target you can see within 20 feet and immediately slams down. The target and creatures within 5 feet of them make a Dexterity saving throw. On a failed save, the target receives 6d10 Force damage and creatures within 5 feet of them receive 6d4 Force damage. Damage is halved on a successful save.

As long as you keep Concentration, the hammer slams down on the same location at the beginning of each of your turns, dealing 1d10 Force damage to creatures in a 5-ft radius of the original target's original location.

This spell cannot be learned. It can only be cast using an interplanar artifact from Eora such as Concelhaut's Skull or Concelhaut's Ironclasped Grimoire.