Bomb

You imbue the glass orb you're holding with explosive power. The orb detonates when the spell ends, unless you use your action to end the spell early without detonating the orb, in which case, the explosive energy is lost, but the orb remains intact.

You can use your action to throw the orb to a point you can see within 60 feet of you. The orb detonates in an explosive blast on impact. When it detonates, each creature within a 10-foot radius sphere centered on that point must make a Dexterity saving throw, taking 2d10 fire damage and 2d10 thunder damage on a failed save, or half as much on a successful one.

The orb is destroyed if it detonates. If you cast this spell again, any currently active explosive orb you created with this spell instantly loses its explosive magic.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the fire damage or the thunder damage (your choice) increases by 1d10 for each slot level above 2nd. Additionally, the duration increases to 10 minutes with a 3rd-level slot, to 1 hour with a 4th-level slot, to 1 day with a 5th-level slot, and with a 6th-level slot, the spell lasts until dispelled and no longer requires concentration.