Golden Fang

You can choose to deal either cold or fire damage with this weapon. When you hit a creature, you can add an additional 1d4 of the chosen damage type. Frostfire Burst: Once per long rest, you can use your action to unleash a burst of frostfire in a 10-foot radius. Each creature in that area must make a DC 13 Dexterity saving throw, taking 2d6 cold damage and 2d6 fire damage on a failed save, or half as much damage on a successful one. Attunement: Requires attunement by a character who has proficiency with daggers. Golden Fang Bonus: You can boil or freeze Water at will, so long as the weapon is in contact with the water, and your character can see it. Up to 50 gallons per action, for a total of a 1000 gallons.

Once per day, you can cast Flesh to Stone without expending a spell slot.