One is a HP Buff (50 whole HP I think) - with a chance of a proc of the reagent necessary for the second spell.
However, once the first spell procs, and you actually have one of those things, the healing spell is a nice one.
I think like this (right or wrong)
I can cast 2 blessings, or pay attention to the proc spell (cuz it sure aint for the HP) that lasts for what... 2 minutes? Its a per fight thing...
I use it solo'ing.. stock up on a couple, and use em in emergencies... On other people, not me..
Look at it this way...
If you want to keep a spell up all the time... and then have a nice heal or two, sure....
Personally, I dont have the time nor the inclination to keep my attention on a spell that procs... maybe... 1 in 40 times... to do a heal that you can already cast..
Before the nay-sayers pop up, its about double the blessing heal... close to LoH
*shrug*
-Law