Is there a class that is more like the traditional Cleric that I am talking about? A battle prophet does sound fun but I have a fondness for blunt weapons.
L2 handles weapons a bit differently than other games/game systems. In L2 physical strength is very largely tied to critical attacks. Hence Dagger > Sword > Blunt. To an extent, the masteries your class has can boost your 'defined' weapons ability, but only to a certain point.
The 'break point' where Crit (Dagger) > ACC (Blunt) is heavily tied into the number and power of Critical buffs. In short, Crits can reach obscene multipliers while Accuracy has a hard limit. You can example raise your crit rate up to 50% (Hard cap) and your crit damage bonus can be rise as high as 4x-6x. Contrast this to a blunt, where once you hit the rough estimate of 100% hit rate (No misses) there is almost nothing more you can do to make blunts more attractive.
Note also, there are fewer ways to increase your Accuracy compared to the number of ways to increase your base damage or criticals. (Buffs/SA's/Tattoos/Set effects.)
Even classes that have stun skills, tend to ignore them, as the MP cost of stun simply does not match up to their land rate nor their duration and the rate at which the stun condition is broken.
This disparity between high and low critical ability is a large reason why Dwarves (Blunt Skills - Low Criticals) are thought of such weak melee and Evasion classes (Dagger/Bow - High Criticals) are extremely strong. This 'critical power' isn't reliant upon special skills either. Most bow users for example, forgoe using ANY of their special skills most of the time, simply because their MP/damage ratio is so bad that an additional normal shot is far more useful than a special skill 95% of the time. (Due to the critical modifiers)
Thus if you go out of your way to use a 'blunt', you are capping your damage output fairly heavily. If you don't care about that, and just want to use one for stylistic reasons....go ahead, there is no barrier to prevent you from doing so in this case. Generic weapon masteries apply to all weapons, and only mystics recieve added penalties to Bows/polearms. And for that matter, the classes without generic masteries, you usually get either Blunt only masteries (Dwarves) or Sword+Blunt masteries. (Pretty much every other class that is not weapon specific.)
If you want a 'cleric-like' class you have a few options. I assume you want a melee char that can heal/buff others.
1)Prophet - Heavy (light/robe) armor and Generic Weapon mastery. Only gets buffs after 40.
2)Paladin - Heavy armor (Tank) w/some ability to heal/help party members. Sword+Blunt Masteries.
3)Elder - Either Shillien or Elven. Your limited to light armor, (or robes) but you do have generic weapon mastery. The EE is more of a 'good' character, the buffs are more defensive in nature although they are a better healer. The SE is more of an 'evil' character. Their buffs are more attack oriented and their healing ability is weaker. Most people play these as strict healer/buffers, although Light armor + melee is still a quite viable 'cleric-like' style of play in small groups with a fair amount of solo ability.
4)Orc Mystic - Overlord or Warcryer. Both have generic weapon masteries and Heavy/Light/Robe armor masteries. As well they have buffs which apply to large numbers of people at a time. They both have a heal skills, although the OLs is better in theory. As well they both have some damage spells as well as debuffs. The OL however is MUCH harder to level and play with. (Less 'powerful' buffs, and clan/ally buff restrictions.) Depending on where you are getting your 'cleric' ideals from, the orcs may be closest to your 'ideal' character.