Thrall to Demon

(Book of Vile Darkness, page 50, DnD 3.0)

[Vile]

The character formally supplicates himself to a demon prince. In return for his obedience, the character gains a small measure of power.

Benefit

Once per day, while performing an evil act, the character may call upon his demonic patron to add a +1 luck bonus on any one roll.

Special

Once a character takes this feat, he may not take it again; he may not be the thrall of more than one demon. Nor may he take the "Disciple of Darkness":feats/book-of-vile-darkness--37/disciple-of-darkness--625/ feat.