Increases your spell casting haste by 20% and spell critical chance by 20% for 20 sec.
Divine Favor is a paladin ability learned at level 62 for those with the Holy specialization. It increases spell casting haste and critical chance by 20% for a small amount of time.
Patch changes
Patch 2.3.0 (13-Nov-2007): When this ability is cast immediately after a critical heal, it will no longer be removed incorrectly.
Patch 1.11.0 (20-Jun-2006): It is no longer possible to cast this immediately after a healing spell and "retroactively" make it a critical hit.
Patch 1.7.0 (13-Sep-2005): Paladins can no longer activate Divine Favor on the previously cast healing spell.
Patch 1.3.0 (07-Mar-2005): Fixed a bug that prevented the effect from being removed, allowing all Flash of Light and Holy Light spells to crit for the full duration.