Hey everyone, I known for Lisya in ShininMoon, and I love using Arch Bishop, back in Pre-Renewal i was using HP as my main job and Sniper for alternate 2nd job. I just falling in love with this job because it has good skill and ofc I don't need do anything hard like killing since I'm in love for support role. Before we start you might want to see my other guide
[NIFLHEIM] FULL SUPPORT ARCH BISHOP
4. Equipment & Cards
5. Costume Enchant & Stones 6. Misc
7. Heal skill Screenshot
Let me introduce you what's is Arch Bishop, their role, etc. Arch Bishop or AB is advanced class (3rd job) for High Priest (HP). Back for few years before renewal, HP has major role for being support or exorcist. While a good party always composited HP with them (or AB in renewal). Back now to renewal almost all char have 3rd job, make them easy to solo hunting, farming, even for leveling, make AB useless. There are some build that could make AB doing solo farm, but since AB need decent gear to make them a bit viable for solo farm most people prefer support. Being a support means your survivability comes first then your party-mates second, without that tagline mean you're not fit to become a support.
the main primary stats of FS AB is INT, DEX, VIT. I'll try to explain it detailed as much as I could, but considered I'm human just like you, I might done some mistake as well.
This stat shown from my AB 183/65
Intelligence (INT) is very essential for your AB because INT cover for your Sp pool, recovery skill effectiveness, MATK, MDEF, resistance and cast delay. The more you put int the more Sp pool you got, so make sure you maxed it to 120 (not recommended max the stat to 130 since you will lost a lots of status point).
Dexterity (DEX) also essential, which you can't missed it. Aside DEX will reduce your cast time drastically, DEX also used for gear requirement. Temporal Dex Boots  will reduce your fixed cast time by 0,5 sec when your base dex reach 120. make sure you don't miss this too.
Vitality (VIT) is the last essential stat for your build. Vitality gives you Health pool, DEF, MDEF also some debuff resistance. It's recomended make it to 100~120, the more the better.
Where do i put rest of the stat?
For the rest stat you can go for STR and AGI, but never tried to put it on luck.
STR gives more weight since you're support you considered to bring some blue gemstone, holy water, and some buff food. If you got some gym pass to throw, you can use the gym pass and put another point from STR to AGI.
AGI gives your aspd for spamming and flee.
LUK you might want it to get negate amount (minus). When you get it to minus you'll get anti cursed resistance.
SKILLS & HOTKEY
here's the main skill for your support ab
Acolyte Job Tree
Heal lv 10 : You should max it to lv 10 because your Caluceo Heal affected by your heal skill level.
Blessing lv 10 : Same goes for Canto Candidus affected by Blessing skill level.
Increase Agility lv 10 : Same goes for Clementia affected by Increase Agility skill level.
Divine Protection lv 10 : Pre-requisite for blessing but also good skill for survivability
Ruwach lv 1 Teleport lv 2, Warp Portal lv 4, Pneuma lv 1 : Pneuma definitely you will need it for ranged attack, while others are requirements for the skills.
Angelus lv 2 and Aqua benedicta Lv 1 used for pre-requisite HP skills
Holy Light lv 1 : This one is quest skill, personally i never used it so you can ignore.
High Priest Job Tree
Increase SP Recovery lv 10 : This skill is essential since your skill will much consuming SP and furthermore it will be more useful when you're the only support in party
Assumptio lv 5 : Gives 250 Def at max lv also can be used with Prefatio. Best skill for you and tanker
Status Recovery lv 1 : Basic skill for status recovery
Resurection lv 5 : Max it...! You will never know when your teammate will be wiped while running dungeon/instance. Need blue gemstone.
Magnificant lv 5 : Double your sp recovery rate (basically arch angeling cards with duration)
Kyrie Elesion lv 1 : Used for pre-requisite, just put 1 lv for it
Lex Divina lv 5 : Same as above, only used for pre-requisite another skill
Sanctuary lv 3 : Same as above, only used for pre-requisite another skill
Safety Wall lv 10 : Max it since it have good durability when maxed and have high duration. Need blue gemstone.
Meditation lv 10 : A should Max skill. gives max sp pool and recovery skill effect.
Aspersio lv 5 : Situational skill, 3 minute duration at level max, you can save up holy water at maxed lv. Need Holy Water.
Impositio Manus lv 5 : Good skill gives flat atk. Only for non magic class.
Suffragnium lv 3 : Very good skill for party and your self. -20% variable cast at max level.
Redemptio lv 1 : This one is quest skill and used in a very dire situation. Never used it unless give your party chance to rise once more, or you will make situation more worse.
Arch Bishop Job Tree
Caluseo Heal lv 3 : Heal party with wide range, heal based on your heal skill level. See Acolyte skill description.
Canto Candidus lv 3 : Cast bless on party with wide range, bless based on your bless skill level. See Acolyte skill description.
Renovatio lv 1 : Used only for pre-requisite skills.
Highness Heal lv 5 : Heal your party with x3.2 amount normal heal at max level
Offertorium lv 5 : Increase the efficiency Heal, Sanctuary, Highness heal, and Caluceo Heal by sacrificing your sp cost 300%. Dangerous skill if you don't bring any item Sp Recovery, eat your sp faster.
Clementia lv 3 : Cast increase agility on party with wide range, agi increased based on your heal skill level. See Acolyte skill description.
Ancilla lv 1 : Create magical stone that could help your party. Need cast Epiclesiss afterwards for it to work.
Epiclesiss lv 5 : Summon tree of life that could revive the dead and gives sp and hp by 4% and 5% every 3 second.
Prefatio lv 8 : Cast Kyrie on party member, the shield summoned didn't affected by your K.E skill.
Oratio lv 5 : Used only for pre-requisite skills
Convenio lv 1 : Very convenient skill, especially if you run in map don't have teleport restriction. This skill will teleport your party member to your location. Need you to be party leader.
Dupple light lv 5 : Used only for pre-requisite skills
Expiatio lv 1 : Used only for pre-requisite skills
Sacrament lv 5 : Reduce your fixed cast time to -50% at max level
Lauda Agnus lv 4 : Gives 10% max hp, and recover them from status ailments.
Lauda Ramus lv 4 : Gives 20% Crit dmg and recover them from status ailments.
Clearance lv 4 : Dispel any buff and debuff from monster/player. some party need you to cast it periodically.
This is the hot key I used for FS AB
Sometimes people always ask me how do i manage to memorize all skill i put above, and all i can say is just do it and do it, your body will remember the position of hotkey.
Equipment & Cards
COSTUME ENCHANT AND STONES
Upper Headgear Costume
Flat HP 4,7~5k (1st and 2nd Enchant)
MDEF 9~10 (1st and 2nd Enchant)
Middle Headgear Costume
Flat MATK 48~50 (1st and 2nd Enchant)
MATK 4%~5% (1st and 2nd Enchant)
Lower Headgear Costume
Heal 14~15% (1st and 2nd Enchant)
Reduce Medium Size Dmg 5%
Reduce Large Size Dmg 5%
Reduce Long Range Attack 10%
Mora Mandarin is the best SP Recovery item for now, aside it light this item also easy to farm (farm it when gramps in eden point you to bif_fild02)
Callueco Heal and Highness heal amount (without buff)
Callueco Heal and Highness heal amount (with buff)
Callueco Heal and Highness heal amount (with buff+Offertorium)
Also I gives My thanks to Remy for guiding me to be one of good AB here