Create Firestone

You conjure elemental fire and infuse the gemstone used in the casting of this spell with it, which flickers with fire and makes your spells do the same. While you hold the firestone, all damaging spells you cast deal fire damage instead of their normal damage type, and are cast as if they were one level higher. When you hit a creature with an attack that deals fire damage, or when a creature fails a saving throw against one, it begins burning. Lastly, your weapon attacks deal an additional 1d6 fire damage

The firestone is hot to the touch. Anyone holding it, including you, takes 1 fire damage at the beginning of each turn he holds it.

The gemstone is small enough to hold in the same hand as another object, and it only functions for you - it becomes inert when in the possession of someone else. The stone crumbles to dust after the duration.

At Higher Levels. When you cast this spell using a 6th level spell slot, the firestone causes your fire spells to cast two levels higher and your attacks to deal 2d6 fire damage. When you cast this spell using an 8th level spell slot, the firestone causes your fire spells to cast three levels higher and your attacks to deal 3d6 fire damage.