Wail of the Banshee
From HGWiki
Caster Level: Wizard/Sorcerer 9
Innate Level: 9
School: Necromancy
Component(s): Verbal
Range: Short (8 metres)
Save: Fortitude Negates
Spell Resistance: Yes
Area of Effect/Target: Colossal (10 metre radius), 1 creature / level
Duration: Instant
Additional Counterspells: Silence
Description: All enemies within the area of effect must succeed at a Fortitude save or die, to a maximum of 1 enemy per caster level.
Notes
This spell does not have a somatic component, so it can be cast while wearing full armor and shield, ignoring arcane spell failure.
When cast by certain creatures in legendary areas (eg Hells & Abyss) specific named immunity to the spell (or immunity to the spell school Necromancy) is required to completely avoid the effect.
The spell Shadow Shield cast as a spell (not from a scroll on an item or as a potion) protects from Necromancy spells.
Items with Wail of the banshee Immunity
Whilst immunity to this spell can be added as a random property there are several set items that have it as listed below -