Delayed Blast Fireball

From Neversummer 4 Wiki

Caster Level: Wizard/Sorcerer 7
Innate Level: 7
School: Evocation
Components: V,S
Range: Medium
Save: Reflex ½
Spell Resistance: Yes
Area of Effect: Huge
Duration: 1 Round / 3 Levels
Additional Counterspells: None
Description: The caster creates a small, magical zone that can detect the passage of enemy creatures. When the field is activated, it explodes, doing 1d6 points of fire damage per caster level to all within the area of effect, to a maximum of 20d6.