Swordmage's Reach

As part of the action used to cast this spell, you make a weapon attack against up to three creatures within the spell’s range. You can use your spellcasting ability instead of Strength or Dexterity for both the attack and damage rolls. If the attack hits, the target suffers the attack's normal effects plus an additional 1d6 force damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the force damage increases by 1d6 for each slot level above 1st.