Um, nerf Warlocks? With all of the talking we've been doing about Wrath of the Lich King lately, we haven't really mentioned the one thing players are supposed to be doing on the beta servers: finding bugs. Fortunately, Sneakthief found a very nice one -- when you combine the Warlock 51 point Affliction talent Everlasting Affliction with the set bonus from the Tier 5 Warlock set, you get an everlasting Corruption spell that goes up in damage 10% every time a Shadow Bolt hits. (He's beating up on a Servant of Allistarj, by the way, which is why the mob isn't dying.)
Extrapolate a few minutes later, and you've got 536 million damage ticking every time Corruption comes around -- which seems to be the cap, so I'm sure a math major can tell us just why that number's special. And all that damage happens to be, as Sneakthief says, enough not just to take down Kil'jaeden with one tick, but all of Sunwell combined. Of course, this is an easy fix (one way to do it would just be to put a cap on how high Corruption damage can go), but this is exactly what the beta is for: finding hilarious bugs and
Update: The figure in the video works out to be 2^29. Thanks, math nerds! We love you!