Isildur was the name of a JRR Tolkien character. Isildur is also the name of the most discussed on-line poker player on the planet today.
In Tolkien lore Isildur was the second King of Gondor and the man who cut the ring of power off the hand of Sauron. Isildur kept the ring of power for himself and that proved to be his undoing.
In poker - Isildur - in a manner of speaking - has taken the aura of power from Tom "Durr" Dwan but whether his undoing is pre-ordained is a subject of disagreement.
Go here to read the background of Isildur's rise to poker prominence.
Go here to read about his latest adventures.