Incorporeal Spell Targeting

(Ghostwalk, page 36, DnD 3.0)

[General]

You know how to cast your spells so they're more likely to affect incorporeal creatures.

Benefit

Every time a spell, spell-like ability, or supernatural ability fails to affect an incorporeal creature because of its incorporeal miss chance, you can reroll your miss chance percentile roll one time to see if you actually affect it. If multiple incorporeal creatures are to be affected by the magical effect, you can reroll each creature's miss chance once.