Dallah Thaun's Luck

(Races of the Wild, page 149, DnD 3.5)

[General]

You can rely on a good dose of luck to get you through almost any scrape. Other halflings say the blessing of Dallah Thaun is upon you.

Prerequisite

Halfling, Cha 13

Benefit

Once per day, you can opt to gain a +5 luck bonus on a single saving throw. However, if you use this ability, you gain a -2 penalty on all other saving throws until sunrise the next morning.