Originally Posted by Blizzard Entertainment
We wanted to improve Seal gameplay for Protection and Retribution, so have made a few changes in that regard. Protection had three Seals, but only used Insight due to its defensive value. We’ve moved that defensive value into a passive for Protection Paladins, and expect them to primarily use a mixture of Seal of Truth and Seal of Righteousness now. To provide better gameplay between Seal of Truth and Seal of Righteousness, and effectively remove a button, we made Seal of Righteousness transform Crusader Strike into Hammer of the Righteous.
*Seal of Insight no longer gives melee attacks a chance to heal the Paladin.
*Inner Light is a new passive ability for Protection Paladins and provides a chance for each melee attack to heal the Paladin.
-Glyph of the Battle Healer is now available only for Protection Paladins, and affects healing from Inner Light instead of Seal of Insight.
*Crusader Strike and Hammer of the Righteous are no longer separate spells.
*Seal of Righteousness now also causes Crusader Strike to be replaced with Hammer of the Righteous while active.