(me english isn’t good, so excuse me if i write something wrong. Also i have to add that i’m pretty noob)
I based on this data to make the build: https://tos-ktest.neet.tv/skills?cls=Char4_15&f=1
*The max lvl of gematria and notarikon is 1
*The 15 ability points of c3 going to Revenged Sevenfold (max15), Ein Sof (max 15) and Gevurah (max5) ====>
Gevurah:
Cd= 30s
Gevurah must be used on enemies with numbers. Enemies affected by Gevurah receive bonus damage from attacks. The amount of hits with bonus damage is based on their calculated number.
Bonus damage = +20% Final damage per skill level (100% at lvl 5)
Duration = 30s
Attribute: if the calculated number of the enemy is lower than 3, the Gevurah skill will use the number 3 to calculate.
It’s a full SPR build. The purpose of this build is to boost damage and keep the party alive.
Why sacrament lvl 10? just if i decide to put chaplain (and have a better buff of Last Rites), or replace it for Cleric c2, otherwhise i just going to put 1 point into sacrament. I know that the best option is remove Miko, but i really like the Miko/Kannushi class n’ their costumes, also the Kagura’s boost of damage is really apreciated (Kagura is also the reason why i put Fade at lvl 5, but still exist the posibility of remove cleric c2 from the build)
I think thath Chaplain would be interesting for the NEW class C3 attribute: Kabbalist’s Cane: When wearing a one-handed Blunt weapon, or a Rod, increase Maximum Magic attack +20%.
-When you use a Rod type weapon, your normal attack is changed to a Magic bolt attack.
Be supporting and make some damage from the distance with Last Rites and Aspergillium look interesting, but i don’t know how worthy is it to replace cleric c2 or wait to rank 10 (no idea when release this).
Thanks in advance for the advice.

Double chance is either a must skill at max level or left it at lv0, not inbetween. Reason: The skill is very gimmicky, and more suited for a build that has a good single-hit burst damage skill (such as Sadhu’s Astral Body Explosion) or when you normally duo with a good class that does it, such as fencer/doppel. The skill debuffs a target that has a number attached to it and makes the next incoming attack they receive do (10 * level)% of its actual damage for X hits (X = number generated).
Leaving it at level makes the cloned monsters last for only (Number generated) + 1 second, so if you get a 9 it will be 10 seconds, I do not think that your build will be able to clear a pack of 9 cloned monsters in that brief time at higher levels, so I’d recommend to level the skill at least to lv3 if so desired.