[quote=“miguel29e01, post:1, topic:41830”]
My question is, would it be better to max out aspersio and leave blessing at 5 since you will have lvl 10 scrament or having lvl 5 aspercio 10 blessing?
[/quote]Aspersio gives 20% bonus PDEF at level 1, and increases by 2% per level. I wouldn’t get it past level 5 since Priest has many good skills.
Blessing is much better to level up than Sacament. Like Aspersio, most benefit Sacrament gives comes from its level 1, but leveling increases some damage and duration.
[quote=“miguel29e01, post:1, topic:41830”]
also does anyone have info on mass heal and stone skin?
[/quote]Mass Heal summons a big circle in front of you that heals you and party members for 20%(+2% per level past 1) maximum health of each player, plus some flat value (not that big).
My Priest is C2, so idk how Stone Skin works.
Note that Monstrance is a huuuuuuuge buff for DEX characters, you should get it! Level 1 already does the trick , it gives flat 10 DEX plus a % of the current DEX each player has (I think it is 33%, so if someone on your party has 100 DEX, he/she will gain 43~ bonus DEX).
I think Zaibas would be better than Aukuras, even if you are not going for its C2 attribute.
And I don’t agree with @Kiyoshiro and @Garrnett. If you are focusing party play and will run a Priest, you will need the Daino buff for sure. 
Aspersio, Monstrance, Blessing, Sacrament, Zalciai, Arcane Energy and Prophecy are already 7 buffs (if you really want Aukuras then it is 8).
Wizards will cast Reflect Shield that goes for the whole party and maybe Enchant Fire and Thauma or Chrono buffs.
Warriors have their selfish buffs already. Only Archers don’t really need to be concerned.
My Cleric will be a magic or hybrid DPS (still haven’t decided what I will get besides Priest C3), so my build will be a little different. ^^