A harmful impact, called Corrupted Blood, devoting tens of Wow gold thousands of players, and left lower-leveled characters in an unavoidable death-loop. The effect, known as a debuff, was a temporary condition, but one which may spread to other players if they stood close enough to each other, exactly like a real virus.
A week after the outbreak, it compelled Blizzard to restart every WoW server to prevent it from spreading out of control.
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Hakkar would toss Corrupted Blood on gamers and it would damage them for about 10 seconds. Players would disperse the effect to others when they got too near those infected. After the 10 seconds were completed, or players finished the boss battle, the harmful impact was supposed to end. Only it did not.
A programming supervision allowed the debuff to disperse beyond the website of the Hakkar boss fight and into the world at large. Much like rats fueled the Bubonic Plague, personalities' trained animals spurred the Corrupted Blood outbreak. Hunter characters can summon and dismiss pets to fight at their side at will. Once ignored, all the effects on the pets have been paused until it is known as back out again. In consequence, the critters could contract Corrupted Blood through the boss fight, disappear and then display the symptoms again elsewhere in the world map if they were summoned. There it might spread to other pets and players which came in contact with them.
Cities such as the dwarven town Ironforge and orc town Orgrimmar were overrun in hours. Non-playable personalities, who could not die due to special coding, would also capture the consequence, meaning any participant that passed by them could get Corrupted Blood.
Once word got out, players searched frantically for information about what was going on.
"The world chat would burst any time a town fell," says Nadia Heller, an ex-World of Warcraft player whose character lived through the incident. "We kept a close eye not only on cheap wow gold classic our guild conversation but on world chat as well to see where not to proceed. We did not want to catch it."