Chilling Ray

Frosty targets one creature it can see within 30 feet of it. The target must succeed on a DC13 Constitution saving throw against this magic or take (3d6) cold damage and be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns. Taking any fire damage will end the effect immediately. If successful, or the effect ends, the target is immune to Chilling Ray for 1 hour.