Thrall to Demon

Chaotic evil alignment,

Once per day, while performing an evil act, you can call upon your demonic patron and gain a +1 luck bonus on any one attack roll, saving throw, ability check, skill check, or level check.

You can take this feat only once. If you take it, you cannot take the Disciple of Darkness or Scion of Sorrow feats (both described in Champions of Ruin), which link you in a similar way to powerful archdevils or yugoloth lords.

You formally become a supplicant to a demon lord. In return for your obedience, you gain a small measure of that demon lord’s power.