Holy Nova

Causes an explosion of holy light around the caster, causing 181 to 208 Holy damage to all enemy targets within 10 yards and healing all party members within 10 yards for 294 to 339. These effects cause no threat. Each time Holy Fire deals damage, you have a 5% chance for your next Holy Nova to cost no Mana.

Talents that change it, each at full ranks:

Power Infusion · with Power Infusion active +63.2 Power Infusion · with Power Infusion active +36.5 Spiritual Healing +31.6 Twin Disciplines +15.8 Twin Disciplines +9.1 Searing Light +9.1 Holy Specialization +7.8 Holy Precision +5.7 Holy Specialization +4.5 Spiritual Guidance +3.4 Divine Aegis +2.3 Spiritual Guidance +1.0 Mental Strength +0.5 Mental Strength +0.3 Mental Agility per 100 mana +4.7 Mental Agility per 100 mana +2.7