Cryoarc Lance (Tweaked)

Description:
You conjure a crackling lance of electrically charged ice and hurl it at a creature within range. The lance explodes on impact with a thunderous crack, sending shards of frozen lightning arcing toward nearby foes.

Make a ranged spell attack against one target. On a hit, the target takes:

• 2d6 cold damage

• 2d6 lightning damage

If the target is wearing metal armor or is made of metal (like a construct), you roll the lightning damage with advantage (take the higher result).

After the initial hit, up to two creatures of your choice within 10 feet of the target must make a Dexterity saving throw (DC = your spell save DC) or take 2d6 lightning damage as icy arcs lash outward.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, increase the cold damage and lightning damage by 1d6 each for every slot level above 3rd.