Hm, the German version calls the duelist from the first announcement ingenious, that sounds more like it could be Noah. After all this is a virtual world...
But could they be a bit more innovative and not have us go to Duel-a-thon yet again? Why not repeat the puzzle event again? Duel-a-thon is really boring.
In the english version they changed it from splendid to elegant. That doesn' sound like Noah, more like Mai. It also doesn't say "get a new card as reward" anymore but "get a new cards as reward". So it's most likely not just one rewards card and they just forgot to delete the "a".