Draconic Hematurgy

From the ruby-clad maw of the dragon on the shield, you channel a surge of draconic blood energy, propelling it towards a creature within range. The creature must succeed on a Constitution saving throw or it experiences the raw power of dragon-infused blood, 1d6 necrotic damage and 1d6 fire damage.

This spell's damage increases by 1d6+1d6 when you reach 5th level (2d6+2d6), 11th level (3d6+3d6), and 17th level (4d6+4d6).