You electrify the attacker's weapon as it strikes its target. The spell deals a creature 2d6 lightning damage on a failed Constitution saving throw, or half as much damage on a successful save. If the attack was a critical hit, the damage increases by 1d6. The spell's target is determined by who made the triggering attack:

• Defensive. If you were hit by the triggering attack, the attacker rolls the saving throw, with disadvantage if it used a metal weapon to make the attack. On a failed save, it also drops the weapon used in the attack.
• Offensive. If you made the triggering attack, the target of your attack rolls the saving throw, with disadvantage if it is wearing armor made of metal. On a failed save, it also can't take reactions until the start of your next turn.

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