It's from skill called "guard".

That's Guard from the Alliance War skill lines. I had a great build with that and one of the DK Wings morphs. Organized guilds would always try to time meteor drops and stuff so if you were fighting them you'd get hit by about 18 meteors in the span of a few seconds. I'd pop this, flap my wings, and reflect them all back, protecting my group and punishing the people trying to coordinate the fall damage exploit with their own cheesy ultimates.

Now people still time meteors, but you can't reflect them anymore so using guard is just a death sentence. Would not recommend. Guess it's more uncounterable ultimates and dysfunctional CC break for a few more months!