Stats: Pure SPR, when you hit full spr base, fill with CON.
Staff: Anything that gives spr is good. For cheapness I recommend you buying a lvl 35 unsealed staff, and if you got money to spare you can buy her any unsealed. Cleric chest equipments are ok too (inca, eva, etc).
Armor: Low level unsealed again for cheapness purposses. Any unsealed will do pretty well. Cleric chest equipments are ok too (inca, eva, etc).
Boots: Incatation/Evanescence/Enigma chest of cleric boots.
Gloves: Incatation/Evanescence/Enigma chest of cleric boots.
Neck: movement speed +sp
Rings: Spr
Skillset for ...
Buffer cleric: Spiritual Bolt lvl 2 (Requisite) --> Spiritual Fire lvl 10 (Attack buff) --> Tempest Boost lvl 10 (Speed buff) [From here on you can decide which skill to level up first] Harden lv 10 (Defense buff, +50 defense, Needs Heal lv 3 as Requisite) --> Angelic shield lv10 (+30% total def for 1 minute, Requieres Tornado Swirl lv 2 as Requisite) --> Tornado Swirl lv 10 (Critical attack buff. Requieres lv 8 Vigor, lv 2 Divine Grace and lvl 2 True Sight as Requierements).
NOTE: This is a purely buffer cleric. It will not do anything else than buffing and have a little heal.
Support cleric: Heal lv 3 (Requisite) --> Harden lv 3 (Requisite) --> Spiritual Bolt lv2 (Requisite) True sight lv 2 (Requisite/will help guilds/pvp) --> Tornado Swirl lv 3 (Requisite) --> Vigor lvl 8 (Requisite) --> Divine Grace lv 2 (Requisite) --> Recover lv 4 (Requisite/important if you wanna help guild mates) --> Energy Shield lv 10 (Important if you want to survive at mazes/pvp) --> Revival lv 1 (Important if you wanna help guildmates) --> Spiritual fire lv10 (Attack buff) --> Tempest boost lv 10 (Speed buff) --> [From here on you can decide which skill to level up first] Angelic shield lv10 (+30% total def for 1 minute) / Harden lv 10 (Defense buff, +50 defense) / Tornado Swirl lv 10 (Critical attack buff)
NOTE: This cleric will not have any attack sources other than the lv 2 Spiritual Bolt, therefore it will not be able to PK.
Overall, clerics are kind of a complicated class to properly build since their skill points are never enough, specially having all of those unnecesary requierements, so always have very clear which kind of cleric youre going for. In my case, I started as a battle cleric and barely got one buff and revive at level 69 so just have that one detail in mind.
Here's a very cool cleric skill tree, if you wanna see just how many requisites there are:
https://devxf2.piratekings.online/forum/database/class/cleric/
Good luck