Yamato

Cast Time: 1 action Range: 100 feet (30-foot radius) Components: V, S, M (a piece of glacial ice) Duration: Instantaneous You call forth a spectral avalanche, burying enemies under layers of ice. All creatures in the area must make a Constitution saving throw. On a failure, they take 7d10 cold damage and are knocked prone and restrained under the ice. The restrained effect lasts for 1 minute or until they spend an action making a Strength saving throw.