Eldritch Flame

You hurl a scorching beam of crackling flames. Make a ranged spell attack against one creature or object in range. On a hit, the target takes 1d10 Fire damage. Creatures hit by Eldritch Flame must  make a Constitution Saving throw equal to your Spell casting ability. On a failed save, they take 1d4 fire damage at the start of each turn. Creatures may attempt to put out the flames at the end of each turn.

Cantrip Upgrade. The spell creates two beams at level 5, three beams at level 11, and four beams at level 17. You can direct the beams at the same target or at different ones. Make a separate attack roll for each beam.