they can do good dmg if u have good gears , but most clerics are made for support for mass pk
full phy reduce gear with magic on it, weapons : purify wep, def wep, damage wep, ct wep isn't necesarry, u wont use it often as 1v1, just camp def till u can sog/sleep, do the br combo with shackle( shackle deals more damage than ep itself) and just wait for target to die while u deal 8-9k when shackle deals 7-14k. Have funmass pk EP requires more skill, being targeted a lot and u have to heal 9 others. You need a HA top along with AA helm, rest r8 armor, with CT wrist -6% and rest pieces(boots and leggings) with phy reduce atleast 4% or -6% ct or -3% ct and phy reduce (any of these works), weapons are easier here, a def wep with atleast 26 def levels (2x stat) and some phy reduce on it also, a purify wep with phy reduce a lot or def level(again any of these works, if both= godly), rings= both magic, ornaments = both pdef, depends what u like more, def ascended dragon cape, which gives more def and hp, less ct, or ascended supreme robe for more vit and stats, less defence, more ct.Tome is VIT regardless the 1v1 or mass pk. The phy reduce will save u. Its an easy class for 1v1 mode and a hard class for mass pk since it requires focus. Have fun
What also helps is having attack (or healing) and defense gear set on macro, so you can switch immediately if you get targeted.
Make and idea about this class by yourself.People's knowledge is near to 0 in this thread.Have fun.