Vulcano

You create a shiny, flaming orb in your hand and throw it at any creature of your choice. A target can make a Dexterity saving throw. They can only make a Dexterity saving throw if they are aware that they are being targeted. When the orb touches them, four magma balls form underground (must be from a volcano, if cast and there is no nearby volcano within 200 ft. radius of you the spell ends immediately) and rise up from below the target. They can also sprout lava when the target has been attacked which means even the medium-sized spaces between them aren't safe.When the target fails the saving throw they take 4d8 fire damage.

If they are attacked and weren't aware that they were targeted, they must roll a Constitution saving throw or else they will be frightened for up to two minutes.

When this spell is being cast using 7th level spell slots or higher, the spell creates one more ball and additionally increases the die count by 1 for each slot above 6th.