An interesting idea, but overall too weak to be worthy of selection, I think. Given the limited nature of feats, barring a Holiday Scion prestige class that simply gives you feats (and even then, given what the feats are capable of), I think each feat needs to have more inherent power to be worth selection. Darkvision and Skill Focus? An inferior soulknife? No thanks. The Gingerbread Wall and Santa's Secret are the two best ones as far as I'm concerned with regard to what they actually do, but both are rather limited in terms of magnitude.