This was an idea that I thought of, with Art of War giving free FoL for most spells that we use, why not make it almost mana free to boot.
http://www.wowhead.com/?talent=sxhbxZ0xZVfbx0IucMsguho
This is deep enough in Holy to get Illumination with getting everything mandatory for PvE.
Note this is a pure PvE spec
With the right macro this can help offheal and the crit chance of FoL with the now generalized 'Crit' the spell crit is near 40% right now at 70.
Yes No Maybe?