Warrior Priests are granted exceptional powers by their divine patron. Not as powerful as the spells of the Battle Wizards, these Prayers are still very valuable on the battlefield.
Once per Empire Magic phase, a Warrior Priest is allowed to use ONE prayer chosen from the Prayers of Sigmar list (see below). Prayers are cast exactly like Bound spells from magic items, with a Power Level of 3. They can be cast on the Priest himself or on any one character or unit champion within 12" of the Priest. Prayers never affect a model's steed, and cannot be cast on Knights of the White Wolf or their Grand Master. Note that a Warrior Priest is never considered to be a Wizard.
Hammer of Sigmar
The model can re-roll failed rolls to wound: This Prayer lasts until it is dispelled or until the Warrior Priest attempts to cast another prayer. This Prayer has no effect on hits from magic weapons.
Armour of Righteousness
The model gets a 5+ ward save. This Prayer lasts until it is dispelled or until the Warrior Priest attempts to cast another Prayer. This Prayer has no effect if the model already has a Ward save.
Healing Hand
The model is immediately healed of all the wounds it has suffered during the battle up to that moment.
Soulfire
Centre the large 5" template on the Warrior Priest. All Undead and Daemons hit by the template (work out which models are hit exactly the same way as you would do for a Mortar's hit) suffer a Strength 4 hit, with no armour save allowed. Soulfire can only be cast on the warrior Priest, not on other models.