You summon a wave of cold that emanates from you in a 60-foot radius. All creatures within the area other than you must succeed on a Constitution saving throw or have their movement speed halved until the start of your next turn.

Small, unprotected flames (such as candles or torches) are extinguished in the area, and shallow patches of liquid freeze solid for at least 1 minute (at the GM's discretion, weather conditions may keep the patches frozen for longer). A creature trying to cross a frozen patch that is at least 3 feet on a side must succeed on a Dexterity saving throw against your spell save DC or fall prone; this can be avoided by moving across the patch at half speed.