Damien's Bottle of Embers

You summon a spectral bottle wreathed in green flames. You can choose to conjure it in a spot that you can see within range. If you summon the bottle at a distance, you can keep it there for up to one minute, choosing to explode it as a bonus action on your next turn. All creatures within a 10-foot radius must make a Dexterity saving throw or take 3d6 fire damage, taking half damage on a successful save. The bottle immediately explodes after one minute.

Alternatively, if you choose to target one creature upon casting the spell, you can immediately hurl and explode the bottle upon the target. The target and all other creatures within 5 feet must make a Dexterity saving throw. The target takes 2d10 fire damage and the surrounding creatures take 1d8 fire damage, taking half damage on a successful save.