Wake of Ashes is replaced with Hammer of Light for 20 sec after it is cast.
Hammer of Light:
Hammer down your enemy with the power of the Light, dealing 246 Holy damage and 122 Holy damage up to 7 nearby enemies.
Additionally, calls down Empyrean Hammers from the sky to strike 3 nearby enemies for 16 Holy damage each.
Costs 5 Holy Power.