Your focussed learning has given you savant-like recall from time to time, as well as unflappable calm.
Prerequisites: Born Under a Setting Sun, Skill Focus (any one Knowledge), character level 6th.
Benefit: You are able to take 10 on Concentration skill checks at any time. Once per day, you may take a 20 on a Knowledge skill check. You must possess Skill Focus for the Knowledge check that you are using with this ability.
Source: Dragon Magazine #340 (Page 48)