Thinblade Accuracy (4e Feat)
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You gain proficiency with the Elvin Thinblade and a bonus to damage when you use your "Elven accuracy" power.
Prerequisite: Elf, elven accuracy
Benefit: You gain proficiency with the elven thinblade. In addition, when you use the elven accuracy power to re-roll an attack made with an elven thinblade, you gain a +2 bonus to the damage roll if you hit. This bonus increases to +4 at 11th level and +6 at 21st level.