Icicle Daggers

1-level Conjuration

When you cast this spell, six icicles appear in your hand. Each icicle has the same properties as a dagger but deals an additional 1d4 cold damage on a hit. The icicle daggers melt a few seconds after leaving your hand, making it impossible for other creatures to wield them. Provided the surrounding temperature is at or below freezing, the daggers last for as long as you hold them. If the temperature is above freezing, the daggers melt after an hour. They also melt instantly if they or you accumulate 10 or more fire damage.
 
At higher levels: If you cast this spell using a spell slot of 2nd level or higher, you can create two additional daggers for each slot level above 1st. If you cast this spell using a spell slot of 4th level or higher, daggers that leave your hand don’t melt until the start of your next turn.