Mace
 

I have a new skill that requires me to equip mace. What is that and where do I find it?

A mace is a Cleric weapon
You can buy it from a Blacksmith

After your L20 job change, you can choose between a mace or a hammer as your cleric weapons - each has a special attack that can only be used for that weapon. Since you have the mace attack, buy a mace, although you should be offered the choice to receive either a hammer or mace when you complete the job change quest. I believe you can't use either weapon until you do the quest, although I could be wrong about that.

You can not equip a lev 20+ item untill you have passed the job change quest.

Trip (hammer) and bleed (mace) are the damage dealing skills. Do not put skill points into these as they are not of much value. The same is true for mighty chop (mace) and I dont remember (hammer) at lev 95.

Dont buy from the blacksmith, any green you may buy or drop will be better.

you can buy it from blacksmith james or what is name is