Talk:Damage Formula/@comment-91.182.113.153-20161108205554/@comment-26154973-20161109201335

The multiplier for the initial attack is

(1 + normal_atk_skill * (1 + primal_aura) + bahamut_atk_skill + character_aura + atk_bonuses)
 * (1 + normal_backwater_skill * (1 + primal_aura))
 * (1 + magna_atk_skill * (1 + magna_aura))
 * (1 + magna_backwater_skill * (1 + magna_aura))
 * (1 + unknown_atk_skill * (1 + ranko_aura) + additional_skills)
 * (weakness + elemental_aura + elemental_bonuses)
 * (1 + other_bonuses)

so if you take only normal/magna weapons and magna/elemental summons (100% and 80%), then you should look at

(1 + ns) * (1 + ms * (1 + ma)) * (w + ea)

at level 9 (for 大/攻刃II skills, 14% attack per weapon for all 10 weapons) magna 100% / elemental 80% became better than elemental 80% / elemental 80%

magna 100% / elemental 80% : 3 normal / 7 magna / 0 unknown / 0 bahamut : 7.56576 (9.66736 strong, 6.51496 weak) elemental 80% / elemental 80% : 5 normal / 5 magna / 0 unknown / 0 bahamut : 7.514 (8.959 strong, 6.7915 weak)