Как много то написали за столь короткое время. И никто даже не удосужился проанализировать "проблему".
ciklopper, ты уж извини, но придется дать основание разработчику для закрытия твоего репорта.
Итак, против тебя используют Смретельный удар, являющийся "желтой" атакой - специальная атака. Вот что про них пишут на вики в статье про таблицу атаки:
http://www.wowwiki.com/Attack_table
"The exact mechanism by which special attacks are resolved is not yet known.
What is known, however, is that a special attack made against a mob or a shield-carrying player can be blocked and be a crit at the same time. This result is impossible under the mutually-exclusive attack results table described in the preceding section."
Перевод требуется? В дальнейшем идет описание двойного-рола для таких атак.
Two-roll theory for melee special attacks
In a thread on ElitistJerks, a user named Vulajin kept track of his critical hit rate over many many Backstabs. [1]
He corrected for all possible factors he could think of, and in the end discovered that the rate he got was consistent with his attack being resolved using two die rolls: A first roll to determine whether the attack missed (using the assumed miss chance for the mob targets he was attacking), and a second roll to determine whether an attack that didn't miss was a critical hit (using his tooltip Crit chance adjusted for the mob target's level).
If his data are accurate, and if the game mechanics for yellow-damage attacks haven't changed since the time that discussion thread was written, then there are at least two random numbers generated to determine the outcome of special attacks. It is unfortunate, though, that these tests were done with Backstab and not with a special attack that can be made against a mob from the front, e.g. Sinister Strike or Heroic Strike. Such data would be more useful, because attacks from the front can be parried and blocked.
Ну, как то так. Бага нет.
З.Ы. Данный вопрос малоизучен был даже на офе.