Hello.
Sorry if this in wrong topic but while going through source I noticed Demon Bane uses formula stated in ragnarok zero wiki, while Divine Protection uses formula as stated in RMS. Which seems sort of inconsistent since both formulas are different depending on where you look.
Demon Bane in source
damage += (int)(skill_lv*(3+sd->status.base_level/20.0));
Demon Bane from wiki: Flat Skill Bonus + (SkillLV * (BaseLV / 20 )) vs RMS: (3*SkillLV)+[0.05*(BaseLV + 1)
and Divine Protection in source
vit_def += i*(int)(3 +(tsd->status.base_level+1)*0.04);
Divine Protection from wiki: Flat DEF bonus + (SkillLV * (BaseLV / 20 )) vs RMS: (3*SkillLV)+[0.04*(BaseLV + 1)