This is a up-to-date Blood DK Rotation for patch 5.4. If you have any questions or suggestions on the rotation, please let me know.
Note: This is just your basic rotation. For more advanced
Click Here For An Addon with Pre-Made 5.4 Rotations
Frost Fever/Blood Plague
Apply with Outbreak, then keep them up with Blood Boil. If nothing is available, use Plague Strike and Icy Touch.
Cast when you have 1 Frost and Unholy rune or Death runes are available.
Only use if you have a Blood rune available.
Use for threat generating or if you need to dump Runic Power.
Horn of Winter
Cast, then recast when it’s about to go down or you need Runic Power.
Death and Decay
Use off cooldown
Cast if you have 3 enemies or less.
Spam for 3 enemies or more.
If you’re still having trouble figuring out your Rotation, or need a more advanced one, then check out the addon I use called Edge. It will show you how to set-up your talents, what glyphs to use, and detailed rotations for leveling, pvp, and raiding.