Dr. Cane's Rod of Blasting

As an action you merge dirt and sulfur together into a glowing orange rod.

The rod is 1 foot long with a 2-inch diameter and it sets off a dim orange glow of 15 feet. The rod also has 1 hit point and an AC of 10. It is immune to all conditions as well as poison and psychic damage.

When thrown, the rod has a range of 25/60 feet and takes 1 point of damage if it impacts a creature, object, or surface. If thrown with no target, the rod doesn't fall immediately and instead floats in the air at a height of the throwers choice within the rod's range and then will fall at the start of the thrower's next turn.

When the rod drops to 0 hit points or after 1 minute passes after the spell has been cast, the rod explodes. When the rod explodes, creatures within a 15 foot radius of the rod have to make a Dexterity Saving Throw (DC13 + dex) or take 5d6 fire damage and be pushed 10 feet away from the rod. On a success they take half the damage

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