Warrior Priests know the three Battle Prayers listed below. Battle Prayers are innate Bound Spells (power level 3). Battle Prayers are augment spells that target the Warrior Priest and his unit. If a Battle Prayer is successfully cast on a Regimental Unit, any of its Detachments within 3" are also targeted by the spell.
Hammer of Sigmar: The Warrior Priest and his unit re-roll all failed To Wound rolls in close combat until the start of the next friendly Magic phase.
Shield of Faith: The Warrior Priest and his unit have a 5+ ward save against all Wounds inflicted in close combat until the start of the next friendly Magic phase.
Soulfire: The Warrior Priest and his unit gain the Flaming Attacks special rule until the start of the next Friendly Magic phase. In addition, when cast, all enemy models in base contact with the Warrior Priest suffer a Strength 4 hit. Undead, Nehekharan Undead and models with the Daemonic special rule in base contact suffer a Strength 5 hit instead, with no armour saves allowed.