Arituk's Scolding Icicle

You crush together what was birthed of fire, and what is the creator of the cold, and a scorching fire forms in your hand, alongside a powerful and magical icicle, where together they can be shoot out as a bolt of ice and fire. Roll a spell attack roll, dealing 1d12 Fire damage and 1d12 Cold damage on a hit.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, either of the two damage types deals an additional 1d8 for each level above.