Delayed Blast Fireball

A beam of yellow light flashes from you, then condenses at a chosen point within range as a glowing bead for the duration. When the spell ends, the bead explodes, and each creature in a 20-foot-radius Sphere centered on that point makes a Dexterity saving throw. A creature takes Fire damage equal to the total accumulated damage on a failed save or half as much damage on a successful one.

The spell’s base damage is 12d6, and the damage increases by 1d6 whenever your turn ends and the spell hasn’t ended.

If a creature touches the glowing bead before the spell ends, that creature makes a Dexterity saving throw. On a failed save, the spell ends, causing the bead to explode. On a successful save, the creature can throw the bead up to 40 feet. If the thrown bead enters a creature’s space or collides with a solid object, the spell ends, and the bead explodes.

When the bead explodes, flammable objects in the explosion that aren’t being worn or carried start burning.

Using a Higher-Level Spell Slot. The base damage increases by 1d6 for each spell slot level above 7.

Foundry Note

The limited uses value of this spell tracks the number of rounds that have passed since the initial casting and starts at 0.

The Turn End Damage Increase activity will increase that value by 1.

The Trigger Explosion activity calculates the total damage based on the limited uses.

If you would prefer manual tracking, you can use Trigger Explosion's Situational Bonus dialog to add the extra d6s and ignore the Turn End Damage Increase activity.