Weapon damage for larger sizes

[Garion Beckett]

Hey guys! So in my newest game I want to play around with charging. And i know there a few magical items and weapon enchantments that help with it but what i mainly want to figure out is how to really use Belt of Thunderous Charging.

So i am a Katana wielder, and I have the feat Daisho Expertise that increase the damage dice of katanas by 1. Then I just enchanted Impact on it, and we also found a belt of thunderous charging as well in the hoard that is likely going to make it to me. And now i need help with the math.

My katana damage was 1d8
Daisho Expertise 1d10
Impact=?
Impact with the belt=?
Impact+belt+Enlarge person=?

[Jeff Morse]

try this FAQ https://paizo.com/paizo/faq/v5748nruor1fm#v5748eaic9t3f

[Syries]

Jeff Morse wrote:

try this FAQ https://paizo.com/paizo/faq/v5748nruor1fm#v5748eaic9t3f

linkified

[Derklord]

Also very relevant is the FAQ right afterwards, which rules that virtual size increases don't stack, and thus you can only apply Belt of Thunderous Charging, or Daisho Expertise, or Impact.

All three virtual size increases are for one size/step, so it doesn't matter which one we apply. 1d8 medium katana, 2d6 with virtual increase, 3d6 with Enlarge Person.

[Scott Wilhelm]

Derklord wrote:

Also very relevant is the FAQ right afterwards, which rules that virtual size increases don't stack, and thus you can only apply Belt of Thunderous Charging, or Daisho Expertise, or Impact.

All three virtual size increases are for one size/step, so it doesn't matter which one we apply. 1d8 medium katana, 2d6 with virtual increase, 3d6 with Enlarge Person.

Daisho Expertise is not a Virtual Size Increase, so it will stack with the rest of it.

Daisho Expertise wrote:

Increase the damage die of katanas and wakizashi you wield by one die step.

It does not say, "Increased Damage as if the weapon were 1 size bigger." If it did, the Damage of the Katana would not go from 1d8 to 1d10, but rather from 1d8 to 2d6.

So, 1d8 with Medium Katana, 1d10 with Daisho Expertise, 2d8 with Impact or Thunderous Charge, 3d8 with Enlarge Person.

Anyway, it's not a Virtual Size Increase if it doesn't say so.

[Derklord]

Scott Wilhelm wrote:

Anyway, it's not a Virtual Size Increase if it doesn't say so.

Like hell it's not a virtual size increase, the FAQ even calls out almost the exact language. Feat: "Increase the damage die (...) by one die step" FAQ: "effective size increases (which includes (...) “your damage die type increases by one step,” and similar language".

The "die" in "by one die step" is out of place, but hey, it's a 3pp feat. "One step" and "one size" is the same thing for damage dice in-/decreases.
A katana never does 1d10 damage.