This new Diablo 3 exploit will probably vanish soon, but while it lasts, wizards are gods.
If you listen very carefully, you'll hear Diablo 3 demon lords weeping into their snot-covered hankies. Yesterday a new exploit was discovered that allows wizards to turn into invincible death-ray spewing maniacs, and it works on hardcore mode. No doubt the ill-gotten gains that resulted from this killing spree are on their way to the Real Money Auction House even as I'm typing this. One kind soul even posted a video to YouTube explaining the deal.
In essence, it's a mix of the Teleport and Archon abilities. Done right, your wizard becomes a glowing blue twink which monsters usually ignore, unless of course you attack them. But as they haven't got a snowball in hell's chance of doing anything to you, your blue murder machine can sweep the dungeon clean, collecting a ton of loot along the way.
Screams of "Blizzard doesn't care about this game" are already being heard on the Diablo 3 forums. No word yet as to what Blizzard intends to do about the cheat. Even if the cheat itself is stopped, it's difficult to see what can be done about loot sold on the Auction House; and that means the cheat may have earned its exploiters actual cash.