Thunder Lance

You weave together arcs of lightning between your palms to create a long, nearly weightless javelin of solidified lightning in your hand. This magic javelin lasts until the spell ends. Make a melee spell attack against the target. It deals 2d8 lightning damage on a hit, and has the reach and thrown properties (range 30/120). In addition, when you use the javelin to attack a target that is wearing metal armor, or made of metal, you make the attack roll with advantage.

If you drop the weapon or throw it, it dissipates at the end of the turn. Thereafter, while the spell persists, you can use a bonus action to cause the weapon to reappear in your hand.
You may also theme the shape of the weapon to be any spear-like weapon, such as a trident or a glaive instead of a javelin if you'd like.

Lastly, this spell casts bright light for 10 feet, and then dim light for an additional 10 feet.

At Higher Levels. When you cast this spell using a 3rd- or 4th-level spell slot, the damage increases to 3d8. When you cast it using a 5th- or 6th-level spell slot, the damage increases to 4d8. When you cast it using a spell slot of 7th level or higher, the damage increases to 5d8.