Eldrige Bolt

Choosing a creature within range and making a range spell attack against them, you engulf them in fire. Dealing 1d6 fire damage on contact. It takes an action to pat out, if they don't however, the target takes an additional 1d6 necrotic damage at the end of their turn.

This damage increases to 2d6 at 3rd level, 3d6 at 5, etc.