Although you are not a gambler, you have and can use a luck pool.
Prerequisite(s): You have no levels in a class that has the luck pool class feature.
BENEFIT
You gain a small amount of luck pool and the ability to either reroll any single d20 roll for yourself with 1 luck point as an immediate action or take a swift action that does not count against your normal limit of one swift action per round. If used on an ability or skill, the ability/skill check cannot take more than 1 round. This does not increase the normal limit of one swift cast spell per turn. Your luck pool refills at the start of each day, and it contains one luck point.
Special: This feat can be selected a total number of times equal to your Charisma modifier (minimum 1), each time increasing your luck pool by 1.