You create two lightning bolts shaped like eels in unoccupied spaces you can see within range that last for the duration or until you cast this spell again. When you cast the spell, you can force each lightning eel to emit a single bolt of lightning at a creature within 5 feet of it. Make one melee spell attack for each eel. On a hit, the target takes lightning damage equal to 2d6 + your spellcasting ability modifier. As a bonus action on your turn, you can move each lightning eel up to 30 feet and repeat the attack against a creature within 5 feet of it. If one lightning eel is within 5 feet of you, you have resistance to lightning damage. If both eels are within 5 feet of you, you have immunity to lightning damage.