Shadow Mend is a level 19 Discipline and Shadow priest ability. It is a replacement for [Flash Heal].
Shadow Mend is a powerful healing spell, almost twice as powerful as [Flash Heal], and even outpowering Holy priest's [Heal]. It comes at a price of damage over time effect that lasts until target takes damage equal to half of Shadow Mend's healing, from any source of damage, or until they leave combat.
For Discipline priests, Shadow Mend is one of the three spels that grant [Atonement].
Patch 9.0.1 (2020-10-13): Now learned at level 19. Mana Cost increased by 25%, healing increased by 78%.
Patch 8.1.0 (2018-12-11): Healing increased by 25% in PvP.
Hotfix (2017-02-21):Shadow Mend now deals appropriate damage to low-level players.