Rune Tap is a death knight ability learned at level 64 for death knights with the blood specialization. It allows the death knight to turn 1 blood rune into 10% of their maximum health. As of Patch 4.0.1, this is a must-have ability for death knight tanks as it ties closely with .
- Patch 4.0.3a (2010-11-23): Now heals for 10% of maximum health, down from 15%. The tooltip may not yet be updated to reflect this change.