Boreal Backlash

Thick layers of ice encase your body, protecting you. You gain resistance to all melee damage until the spell ends. If you are hit by the triggering attack, the ice explodes at the attacker, ending the spell. The attacking creature must make a Dexterity saving throw. It takes 2d10 cold damage on a failed save, or half as much damage on a successful one. If the triggering attack misses, the ice remains on your body until the start of your next turn, unless a subsequent attack hits you first. You are Petrified while encased in the ice.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.