I’m not the best person to give advice on pvp builds, but I would stay away from chaplains for pvp if I were you.
The reason for that is because Stone Skin has a really hard nerf in pvp and most of chaplain’s dps comes from auto-atks (killing people in pvp with auto-atks is extremely difficult). As an INT chaplain you would have magnus exorcismus to deal dps but I would say another class circle would benefit you way more than chaplain…
Oracle 3 is a decent pvp class, but if I were you I’d wait to see if Miko’s Clap can actually extend Counter Spell’s duration and pick Oracle 1 Miko 1 instead. Miko is a pvp monster with her buff cancelling skills too.
Also I’d like to mention that, without cleric 2, your build will be pretty bad at healing for pvm.
If Miko works with counterspell, I’d pick something like Cleric 2 > Diev 3 > Oracle 1 > Miko > Kab 1 / PD 1 / Inqui 1. Extremely pvp oriented build, but super annoying and strong at it.
Note I didn’t pick Cleric 2 Priest 3. I switched it for Cleric 2 Diev 3 instead because I believe Dievs are monsters at pvp too. With a build like that you can go INT to deal minimal dps with owl statues and Miko skills, or you can go full CON and have insane hp at pvp.