Cut of Lightning

Effects:

* Target creature takes 3d4 lightning damage. 

* Caster must make a DC 15 wizdom saving throw or the spell with attack the non-target.

A common spell, used by spellcasters to summon a furious burst of lightning at a foe, creating a bloody cut. When a monster is hurt by this, it will give a shriek of pain. Every spellcaster must be careful, though, for it may hurt a friend and not a foe.