Hi Hi!
In my really humble opinion, i think clerics shud get all the skills, or at least most of them.
I'll post my cleric skill tree. I'm a main cleric with warrior sub (lvl 10-for shield bash), and here it goes.
Notice i pointed the healing skills i never use, cuz they're not that handy, unlike the others.



and my quick slot bars




I'm pure int cleric, and clerics NEED to party with other people. That's the main reason why clerics exist! lol.
Anyhoo, when you're in a party, you've to keep recovery division up, try to healing cycle your tank so he/she/they feels safe. And whenever one of your party mates (say damage dealers get hit) are being attacked, use the rapid healings, instant group healings, and you can keep healing them with Healing orbit or with Recovery Division itself; hence your party is healed all the time. You dont need/have to spam healings, healing spammer clerics are the biggest noobs ever made.
What to wear?, a good light armor set. Why? cuz clerics passive gives you better defense (mag and phy defense) if you wear light armor. BESIDES, you can buff yourself and others better.
I used to wear robe in my very first levels, but even tho i was saving mana and healing slightly (yes, slightly) better, i couldnt buff properly and my defense was weak; and that's the main reason why i switched to light armor. Better defense to stay alive and buff others, that means your party will do fine. You'll never run out of mana cuz you're supposed to be doing an exact job! lol. Remember, dont spam healings, just healing cycle the tank, and keep recovery division up, or better yet using healing orbit, and use isntant and rapid healings just in case other get attacked, that way your party members HP will be smiling cuz they're full all the time, AND you wont be doing like most of the clerics, standing and spamming and raping mana.
Now for attacking skills. I use justice cross to fight against lower level chars than me. JC(justice cross) is not that strong, UNLIKE what to me is the best attacking skill ever made lol; that's the over healing and glut healing. Max them both!, yes both. I've seen noobs only maxing the second book but they dont even know that the first book is even stronger than the second, lol.
Why you need the over healings if they do "low damage"?.
Well that low damage cant be blocked or defended. Over healings ignore all defense and it's an absolute damage. You can pwn noobs being on bless spells, using skins and screens, only with your over healings.
Over healings is the pure int ultimate killer skill lol(because of their low hp), or in other cases you can use overhealings when a pure str is gettin ganked by other people.. But remember, Clerics arent meant to pvp, they're a support class. But whenever you get attacked and your party is busy killing other people/mobs, use a couple of overhealings and you'll be fine. Now if that doesnt work, use offering/pure offering, and that's the end of the tell, lol.
Hope i helped.
