You draw on the power of a historic fire, drought, or heat wave that happened within the past 100 years within 1 mile of you. You then release the condensed memory of that event in a blast that erupts in a 30-foot radius from you. When you cast this spell, you can designate a number of creatures equal to your spellcasting ability modifier to be unaffected by it. The blast causes one of the following effects of your choice:   Desiccate. Nearby water rapidly evaporates, including the water within creatures. A body or container of water in the spell’s area that fills a 10-foot cube or less evaporates instantly, including water in containers that are being worn or carried by creatures in the area. Each creature in the spell’s area must make a Constitution saving throw, taking 8d8 necrotic damage on a failed save, or half as much damage on a successful one. Creatures made mostly of water, such as water elementals, have disadvantage on the saving throw.   Swelter. The temperature of the air around you rises dramatically. Each creature in the spell’s area must make a constitution saving throw, suffering 2 levels of exhaustion on a failed save, or only 1 level of exhaustion on a successful one.   Wind. Hot wind explodes out from you. Each Tiny creature with a challenge rating of 1/4 or lower in the area that doesn’t have total cover from you immediately dies. Each Small or larger creature in the spell’s area must make a Strength saving throw. On a failed save, a creature takes 4d8 bludgeoning damage and 4d8 fire damage and is pushed away from you up to the edge of the spell’s area and knocked prone. On a successful save, a creature takes half the damage and isn’t pushed or knocked prone.