Dusk Elf Stealth is an elf bloodline feat, introduced in Dragon Magazine 382, concerning dusk elves. [Dr382:68] When an elf selects this feat, all allies within 6 squares that do not likewise have this geat gain a +1 racial bonus to Stealth checks. The Dusk Elf subrace is represented mechanically by selecting this feat. There is otherwise no difference to your character.