A burst of cold energy emanates from you in a 30-foot cone. Each creature in that area must make a Constitution saving throw. On a failed save, a creature takes 3d8 cold damage and is hindered by ice formations for 1 minute, or until it or another creature within reach of it uses an action to break away the ice. A creature hindered by ice has its speed reduced to 0. On a successful save, a creature takes half as much damage and isn’t hindered by ice.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, increase the cold damage by 1d8 for each slot level above 2nd.
You invoke both death and life upon a 10-foot-radius sphere centered on a point within range. Each creature of your choice in that area must make a Constitution saving throw, taking 2d6 necrotic damage on a failed save, or half as much damage on a successful one. Nonmagical vegetation in that area withers.
In addition, one creature of your choice in that area can spend and roll one of its unspent Hit Dice and regain a number of hit points equal to the roll plus your spellcasting ability modifier.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot above 2nd, and the number of Hit Dice that can be spent and added to the healing roll increases by one for each slot above 2nd.