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.
* - (a ball of bat guano and sulfur)
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Posted May 27, 2025Hide in stealth, use extended spell meta-magic, and pray your Bard/Monk/Ranger/Rogue friend is lucky on their dexterity save to throw a 32d6 fireball
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Posted Jul 10, 2025If the duration is one minute isn't the max damage 22d6?
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Posted Jul 14, 2025SunlitStorm was proposing using the "Extended Spell" metamagic option, which doubles the duration of a spell. This would make the duration two minutes, adding another 10d6 damage if it goes all the way, for a total of 32d6.
The damage could also be increased by another 2d6 by casting it with a 9th-level spell slot.
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Posted Nov 6, 2025Now Circle Cast this for 24 hours.
Oops, you destroyed the entire world.
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Posted Nov 10, 2025Well, you can get a ridiculous amount of damage dice that way, but it still has no effect on anything outside of the designated 20-foot Sphere.
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Posted Nov 18, 2025while maintaining concentration on this spell are you allowed to move around past the area range? for example if circle cast for 24 hour duration could you walk around an entire town while holding concentration on it?
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Posted Nov 24, 2025Yes, you can do that. There's no requirement that you remain in range of a spell's target point/area while concentrating on it unless the spell itself explicitly says so, which this one doesn't. This was clarified in Sage Advice here.