Multiple Divine Aegis buffs generated by different priests can be active on a target.
If during that time another Divine Aegis from the same priest is granted to the target, a new Divine Aegis buff is created for the combined amount of both buffs, with a fresh 15-second duration. In this way a Divine Aegis can be repeatedly increased in size, and kept active indefinitely.
Divine Aegis will always absorb damage first, before effects such as [Power Word: Shield].
Similarly to Power Word: Shield, it will also prevent on-damage effects such as [Prayer of Mending] from proccing.
Hotfix (2012-11-06):The shield generated by Divine Aegis now absorbs 50% of the amount healed (was 30%).
Patch 5.0.4 (2012-08-28): Divine Aegis no longer procs twice from Prayer of Healing crits. Now a level 24 Discipline specialization ability (was a tier 5 Discipline talent).
Patch 4.3.0 (2011-11-29): Divine Aegis has a new spell effect.
Patch 4.2.0 (2011-06-28): Now uses the same spell effect as Power Word: Shield.
Hotfix (2011-04-29):Divine Aegis will no longer produce a shield if the full heal that should cause it is absorbed by a death knight's Necrotic Strike.
Patch 4.1.0 (2011-04-26): Duration has been increased to 15 seconds, up from 12.
Patch 4.0.6 (2011-02-08): Critical effects from Prayer of Healing now award a bonus amount in addition to the default, always-proc Divine Aegis effect.
Patch 4.0.3a (2010-11-23): Is now always triggered by Prayer of Healing in addition to critical heals from all other spells.
Patch 4.0.1 (2010-10-12): Moved to tier 5 (was tier 9).
Hotfix (2009-08-08):Prayer of Mending will now trigger Divine Aegis on the healed target and not the Priest who cast Prayer of Mending.
Patch 3.2.0 (2009-08-04): This talent will now work properly if the Priest moves out of range of his or her target as the effect is resolving.
Patch 3.1.0 (2009-04-14): Divine Aegis effects will now stack, however the amount absorbed cannot exceed 125* level (of the target). It will also now take into account total healing including overhealing.