You conjure a pillar of spellfire in a 20-foot-radius, 20-foot-high Cylinder [Area Of Effect] centered on a point within range. The area of the Cylinder [Area Of Effect] is Bright Light, and each creature in it when it appears makes a Constitution saving throw, taking Radiant damage on a failed save or half as much damage on a successful one. A creature also makes this save when it enters the spell's area for the first time on a turn or ends its turn there. A creature makes this save only once per turn.
Spellfire Storm
Level 4 Evocation · Concentration
Casting Time1 action
Range60 feet
DurationConcentration, up to 1 minute
Components
V, S
Spell Description
RadiantUsing a Higher-Level Spell Slot
In addition, whenever a creature in the Cylinder [Area Of Effect] casts a spell, that creature makes a Constitution saving throw. On a failed save, the spell dissipates with no effect, and the action, Bonus Action, or Reaction used to cast it is wasted. If that spell was cast with a spell slot, the slot isn't expended.
The damage increases by for every spell slot level above 4.
When you cast this spell, you can designate creatures to be unaffected by it.
The number of secondary casters determines the spell's area of effect and duration, as shown in the table below. The spell ends early if any caster who participated in this casting contributes to another casting of Spellfire Storm as a Circle spell.
Casting as a Circle Spell
In addition to the spell's usual components, you must provide a special component (a blue star sapphire worth 25,000+ GP), which the spell consumes. The spell's range increases to 1 mile, and it no longer requires . When the spell is cast, each secondary caster must expend a level 3+ spell slot; otherwise, the spell fails.
1-3
40-foot-radius, 40-foot-high Cylinder [Area Of Effect]
1 Hour
4-6
60-foot-radius, 60-foot-high Cylinder [Area Of Effect]
8 Hours
7+
100-foot-radius, 100-foot-high Cylinder [Area Of Effect]
24 Hours