What? You asked how skill changes between using Holy Radiance and Divine Hymn. Holy Radiance doesn't have a cooldown...
Again... keep comparing Holy Radiance to Divine Hymn.... really solidifying my argument.
---------- Post added 2011-12-21 at 05:54 PM ----------
Healing Rain has diminishing returns.... and the only reason PoH doesn't is because it is limited to a group. Holy Radiance needs to only heal a certain amount of players at once.