Arcane Lance

You conjure a lance of arcane crystal, which launches foward from your hand. Each creature in a line 30 feet long and 5 feet wide emanating from you must succeed on a Dexterity saving throw or take 1d8 piercing damage

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).