ill be honest, i love the idea so far of the game with the classes and the class tiers, but my thing is that i just feel lost in this game right now. honestly i dont know what i want as far as clerics go. i want to go as a support class mainly but i dunno where to start. honestly as you reach higher class tiers you have a selection of other classes to get skills from and quite frankly im not sure what to get. i mean sure there are theory crafted builds here to go off of, but of course they are only just that, theory crafted. most if not all have no basis of effectiveness. i do realize that most, if not everyone, here are in the same exact boat i am, some more than others and some who probably already have a good idea of what they want to do. im just like what do i do what do i get? maybe someone can enlighten me a little bit more and give me some direction?
If you want a full support char i think this combo is a good one.
Cleric - Priest + Priest (resurrect skill and some buffs) - Paladin (elemental resist buff + restoration) and Pardoner (scrolls for party member and guildmates)
sorry for the bad english
Its very easy create support class. Go in Tosbase and read what skill does…Then create that build based on skill that u want…
If you play in the iCBT
Enjoy a lil hell during this beta because cleric is almost entirely unable to hit airborne targets.
The one fortune is if you choose Krivis, where you get Zaibas which can hit airborne targets.
In General
There are no known ‘effective’ builds because no one has managed to effectively prove the practical value of all the possible builds.
(especially not for a support class, where the priority of your support might only start during mid or end-game, since I don’t think anyone has actually achieved even lv100 with the current xp model, yet.)
Game’s not even left beta, it’s too soon to confirm what is going to be effective.
(lookie here, Grannie, look at all dees skeel changes!)
I see your point there, but as of now, it is really hard to know which build to go because we mostly don’t know with skill is mostly needed by party members (if you will go support built). Personally, I’m planning on going cleric>priest>diev>druid, it has decent buffs, but the only problem I found is most of the decent offensive skills can only be achieve by rank 4 above, but since I prefer support build, this is alright with me, I just need to find some good friends that I can party with 
that honestly sounds like a nice idea, though honestly it kinda sucks i dont have any friends to play this with so i have try and make some if i can lols
I’m even planning to drop priest since resurrection (and the costume) is the only skill I need there, but once I found how useful resu really is, then, I’ll decide whether to go with priest or rank 2 cleric.