Wow.com: Ensidia, now of Tarren Mill-EU, reported today that they have captured the world-first A Tribute to Immortality. Considered to be one of the most difficult, if not most difficult, raiding achievements currently in the game, A Tribute to Immortality requires a perfect run of heroic Trial of the Crusader-25 with no player deaths and all 50 attempts remaining. The reward for pulling this off is the Crusader's Black Warhorse (Alliance version here), but I wouldn't expect to see too many of these running around in the near future.
