What effects do Secondary Weapons have?

Here’s the analysis.

Main: Staves

Staff/Knuck
MAtk decreases by -15%
Proc rate of brawler skills increase by 50% (base 25%: increases to 75%)
Element does not apply.
Stability overlaps.

Staff/MD
Atk (103:87=-15%)
All spell radii use wider MD range.
Stability overlaps.
Proc Rate of brawler skills increases by 25%. (base 25%: Increases to 50%)

Staff/Dagger
All Substats function.
Element only applies to dagger via dagger skills.
Stability adds

Staff/Arrow
Stability adds. all substats function
Element only applies to bow skills. (example:arrow rain)
Def/mdef lower by (19:14=5/-25% and 80:60=20/-25%)

Staff/Shield
Aspd lowered by -50%*
Shield Mastery removes this penalty by +5% per rank.
Shield Def stat is applied to Def & Mdef.
All other stats and subs apply normally.

Main: Bowguns

Bowgun/Knuck
MAtk decreases by -15%
Proc rate of brawler skills increase by 50% (base 25%: increases to 75%)
Element does not apply.
Stability overlaps by mean (Example: (50% + 90%)÷2=70% Stability.)

Bowgun/MD
Atk decreases by -15%
All spell radii use wider MD range.
Stability overlaps by mean. (Example: (50%+60%)÷2=55% Stability.)
Proc Rate of brawler skills increases by 25%. (base 25%: Increases to 50%)

Bowgun/Dagger
All Substats function.
Element only applies to dagger via dagger skills.
Stability adds. (Example: 50%+10%=60% Stability.)

Bowgun/Arrow
All substats function
Element applies to bow skills and auto attacks. (example:arrow rain)
Def/mdef lower by -25%
Stability adds. (Example: 50%+20%=70% Stability.)

Bowgun/Shield
Aspd lowered by -50%*
Shield Mastery removes this penalty by +5% per rank.
Shield Def stat is applied to Def & Mdef.
All other stats and subs apply normally.

Main: Knuckles

Knuck/MD
Atk is lowered by -15%.
All spell radii use wider MD range.
Stability Substats Function
Proc Rate of brawler skills decreases by 25%. (base 100%: Decreases to 75%)

Knuck/Dagger
All Substats function.
Element only applies to dagger via dagger skills.
Stability adds.

Knuck/Arrow
Stability adds.
All substats function
Element only applies to bow skills. (example:arrow rain)
Def/mdef lowered by -25%

Knuck/Shield
Aspd lowered by -50%*
Shield Mastery removes this penalty by +5% per rank.
Shield Def stat is applied to Def & Mdef.
All other stats and subs apply normally.

1h Swords

1h/Knuck
MAtk decreases by -15%
Proc rate of brawler skills increase by 50% (base 25%: increases to 75%)
Element does not apply.
Stability overlaps by mean if knuck has higher stability

1h/MD
Atk lowers by -15%
All spell radii use MD range.
Proc Rate of brawler skills increases by 25%. (base 25%: Increases to 50%)
Element does not apply
Stability overlaps by mean if md has higher stability.

1h /Dagger
All Substats function.
Element only applies to dagger via dagger skills.
Stability adds

1h/Arrow
Stability adds. all substats function
Element only applies to bow skills. (example:arrow rain)
Def/mdef lower by (19:14=5/-25% and 80:60=20/-25%)

1h/Shield
Aspd lowered by -50%*
Shield Mastery removes this penalty by +5% per rank.
Shield Def stat is applied to Def & Mdef.
All other stats and subs apply normally.

Important Notes:

Equipping an MD as secondary will make Charge use MD’s charge time if its faster than the primary.

And this is really interesting
Power Wave (Passive lvl3: Magic Skill) will add the MD’s Atk stat and all substats that apply. This works for Staff/MD too. Vita core (29+5) vs metal wings (32+5) vs irogeon (15+6) show substantial differences. Metal will crit more, as per it’s subs. Vita still has higher average damage as per its stability 10% power wave uses Primary’s stability as base (example: Knuck/vita; 90%+10%=100%: 95% is cap). Xtals on them work during power wave. My vita use astols. Metal Wings have a crit +2 xtal. So this must be a glitch they don’t know about.

Power wave with MD in secondary will negate damage penalty to Power Wave.

Bowgun with MD and Power Wave applies damage increase from Long Range between 8-10m (lvl2 Bow passive Bow skill).

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