Blood Calls to Blood

(Heroes of Horror, page 120, DnD 3.5)

[General]

Exploring the latent potential in your blood due to your fiendish descent, you learn how to better adapt to the mystical attacks of your forebears.

Prerequisite

Spontaneous arcane caster, must be descended from a fi end

Benefit

Against the attacks, spells, and spell-like abilities of fiends (evil outsiders) and half-fi ends, you gain a +2 bonus on your saving throws. This bonus does not apply against the assaults of opponents of any other kind.