Scion of Sorrow
(Champions of Ruin, page 23, DnD 3.5)
[Vile]
You formally supplicate yourself to a powerful yugoloth lord. In return for your unfl inching obedience, you gain a small measure of the wretched fiend's power.
Prerequisite
Neutral evil alignment
Benefit
Once per day, while performing an evil act, you can call upon your fiendish patron to add a +1 luck bonus to any one attack roll, saving throw, ability check, skill check, or level check.
Special
This feat can only be taken once. A character who takes this feat cannot also take the "Disciple of Darkness":feats/champions-of-ruin--27/disciple-of-darkness--626/ or "Thrall to Demon":feats/champions-of-ruin--27/thrall-to-demon--2908/ feat.