Voltaic Strike

The caster speaks an arcane phrase and flourishes the weapon used for the material component sending powerful arcs of electricity courseing down its length

While this spell is active the first attack landed with the weapon used as the material component may deal an additional 2d8 lightning damage

 At higher levels: When casting this spell as a 2nd level spell or higher you ma add an additional 1d8 lightning damage for each level above 1st