DEF rings are great for priests. HP rings are kind of silly, as your heal keeps you at max HP 99% of the time, so that 140 extra HP is really much less useful than reducing most damage by 8 (most refers to the fact that damage cannot be reduced to less than 15%). Plus, as far as I know, armored (from HProt) takes DEF from gear into consideration, so this boosts your armored DEF too.
Pyra is good, as the HP is still a little bit of a help, even if less so than DEF, and the +4 ATT boosts the priest's terrible offense by a little (barely noticeable, but still something).
Anything with MP/WIS on it (Sphinx, Nile, Exa MP, Exa WIS) is excessive. A smart priest can heal himself and a decent-sized group just by maxing MP/WIS.
This post was edited by woofrikinhaw2 on Feb 14 2013 09:31am