Source: Eberron Campaign Setting
You have a larger reservoir of luck than the average hero.
Benefit: Your action point maximum per level is increased by 3. Thus, you now gain a number of action points equal to 8 +1/2 your character level at each new level you attain. This number also represents the total number of action points you can have at each level.
Special: NPCs normally do not have action points. By taking this feat, an NPC gains and can use 3 action points every level.
Normal: Without this feat, player characters receive and are limited to action points equal to 5 +1/2 their character level at each new level they attain.