Inaccurate?

Glacial Ward

(Frostburn)

Abjuration [Cold]
Level: Sorcerer 4, Wizard 4,
Components: V, S, M,
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 1 min./level (D)
Saving Throw: None
Spell Resistance: No

A faint, shimmering reddish energy encases the subject's body, granting spell resistance 18 against fire spells and spell-like abilities.
In addition, any creature using a fire-based supernatural ability on the subject (such as a breath weapon) must succeed on a DC 18 level check (1d20 + level or HD) to affect a creature warded by this spell.
Material Component: A pinch of sulfur.