Lots of topics :/. I need all in one topic :P

[Triumph]

1. What weapon using hammer or mace or other?
Technically it's your preference, quantity vs. quality, of sorts. Maces hits more with lower damage, whereas hammers hit higher but less frequently.

2. Cleric canuse shield?
Yes, which makes investment in END all the better.

3. Cleric is godd for fighting or in this game he isvery good buffer no fighter (only party)?
Clerics are better off in a party, but can solo efficiently as well.

4. What stat build for a buff or fighter cleric are the best?
Again, your preference. Usually they fall into three types:

*STR/END clerics: The cleric that can solo the best.
*END/SPR clerics: The cleric that can technically support the best.
*Pure END clerics: The cleric that can take a hit.

Of course, there are other variations. But those seem to be the most common.

5. What skills build for a buff or fighter cleric are the best?
All clerics can support. The type of build you use is technically irrelevant.

*Fighting clerics: STR/END is definitely what you're looking for. You can dish out the damage, and take damage back as well.

*Support clerics: Regardless of what others say, a cleric is a cleric. Any cleric can play support, despite what others claim.

can someone post like a leveling guide..im having a pain grinding..dont know which monsters to grind at...

Check the Wiki, there are plenty of guides.