Re:New World Event (Score 3, Informative)

Yes, apparently at this moment they are tracking the SOJs sold to merchants. When enough SOJs are sold to merchants, a world event is sent to all currently running Hell games on that realm saying 'Diablo walks the earth!'

At that point, the next superunique generated in each of those games (i.e. the seal bosses in the Chaos Sanctuary) will become a souped up Diablo, much more powerful than the normal version. Kill him and you're very likely to get an Annihilus, a unique small charm with must-be-seen-to-believe stats.

See this thread: the Amazon Basin