I want some suggestion about purchasing and leveling up necessary skills for my supportive priest build, as they are countless build about PVP or PVE but I'm not focusing on offensive skills, I think 4 skills are supportive ones, please which one should I purchase/upgrade plus I want to play my Priest on LVL 20 Max so only 2 expert skill will be purchasable (not buying additional slot through miracle coins), also which supportive relics should I have to purchase.
Valor Aura
Redemption
God's Help
Resurrection
and yes I have maxed out Holy Shield and Healing Touch is maxed out.