Violence Summary: In WotLK, the Ice Shards slightly random output cycle number, it is closer to cycle rather than a fixed-priority cycle, the evil genius is just the opposite.
DK evil efficiency system will substitute Rune
We believe that Rune efficiency system is a very important mechanism, the lack of such a mechanism would lead to the predictability of the output cycle is too strong, even as mechanical as the metronome. We try to ensure that all gifts are some random mechanism to ensure that players need to act according to circumstances and not as quickly as possible to repeat the use of certain skills. Random mechanism for the output loop more difficult to forecast, control becomes even more complicated, some players ability to respond to the random mechanism is very bad, this is the point.

But in WotLK, the Ice Shards of the output cycle of slightly random number, it is closer to cycle rather than a fixed-priority cycle, the evil genius is just the opposite. This allows the player can pick their favorite game style, but also enable them to switch the two natural feel different when (not simply replaced with Shadow damage to Frost damage). We are designing a system enabling evil day, it would basically shut down the system Rune efficiency, while in some other more predictable mechanism to replace, such as speed rune refresh rate. This design philosophy is to provide gifted an option, so those who like Rune efficiency can be always evil DK. Even if the point of the talent you need to be vigilant, it is not known to fight you every second of what the skills.