Tundra

Plant the blade in the ground. Deep breathe in and out. Using the space around you in a 40-foot radius becomes chilled like a tundra and a frozen mist envelops the area.

Due to the cold temperatures, the movement speed of all entities in the radius, except the user, is halved and must perform a DC10 + CHA + Proficiency mods CON save.

On a failed throw, 5d6+6 frost damage is dealt and they have a disadvantage on their next attack. Entities take half as much damage on a successful throw. 

Nearby small bodies of water within this radius become frozen for the duration of the spell. 

This spell allows Shards of Jotunn to be cast. 

While active, every 3rd use of divine smite does not use a spell slot, however, the highest level of divine smite can not be used for this.