Lightning Spear

Spell Lists: Druid, Ranger, Sorcerer
2nd-level evocation
Casting Time: 1 action
Range: 100 feet
Components: V, S, M (a handful of wool and an amber stone)
Duration: Concentration, up to 1 minute
You create a spear of pure electricity and throw it against a creature you can see within range. Make a ranged spell attack. Upon hit, it takes 2d6 lightning damage. A creature damaged by this spell must make a Constitution saving throw. On a fail, the target is stunned for the duration.
At the end of each of its turns it can make another saving throw. On a fail it takes 1d6 additional lightning damage. On a success, it ends the spell
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the initial damage increases by 1d6 for each level above 2nd