Well i go for the 2:1 build of end:spr ( All the rest End : 25 SPR ), i usually solo cause theres no1 to party with...Its pretty easy..
Heal : Max power & cooldown
Bash : Max lower sp consumption
Trip/Bleed : Max lower sp consumption
Since i dont put in str nor do i have enchanted weapons, my damage is kind of low, to make it up for that i have a huge spr bar n i can spam as many attack skills as i want for damage n only needing to heal once in a while.
Also if i would usually use every single type of scroll in battle so yeah...Its kinda hard in this game for a cleric to just be a healer off-KQ time...So just fight and heal occasionally?
Thats all i know
Hope it gave you some ideas on how to play your cleric