Deadly trait from Bestial Mutagen with Mutant Physique

[Shrekovitz]

Hello everyone! I'm building a character for high-level campaign and I bumped into one pretty nice combination of Bestial mutagen's natural weapons with Alchemist's Mutant Physique feat for my Gymnast Swashbuckler with plans on the Deadly Grace.

With the Major version of the mutagen I gain natural weapons with 4d10/4d12 damage and Deadly d10 trait without need in Striking rune, which specifically doesn't modify the damage caused by these attacks. However, increase in number of Deadly dice depends solely on the weapon's Striking rune by rules of the Deadly trait.

My question is how many deadly dice do I get on critical hits with these weapons?

As I can see, by RAW I get only one Deadly die due to the lack of the Striking rune but it seems a little strange to me cuz I still need Striking Handwraps but only for Deadly scaling, which is a bit lame.
I can interpret "Striking runes don't modify the damage caused by these attacks" as that Deadly (and other "number of dice" effects) scale with the mutagen's number of dice instead and Striking has no deal with these numbers at all but it effectively gives Major Striking on 17th level and, as far as I know, has no support by the rules.
Am I missing something?

[Baarogue]

First thing anyone here is going to do is umm actually you on the use of the phrase, "natural weapons." They are unarmed attacks, and specifically NOT weapons of any sort. So they won't count for various swashbuckler feats that require you to be welding a weapon, for instance. As for your question re: the deadly trait, as you already said, the bestial mutagen answered that already

[The Raven Black]

Yes, they could have made the Deadly scaling but they likely forgot.

So, RAW if you want Deadly to scale you need to buy the Striking runes.

[Shrekovitz]

Baarogue said wrote:

They are unarmed attacks, and specifically NOT weapons of any sort.

Oh. You're right, indeed. It's stuck to me since 1e, apparently.

[Baarogue]

Shrekovitz wrote:

Baarogue said wrote:

They are unarmed attacks, and specifically NOT weapons of any sort.

Oh. You're right, indeed. It's stuck to me since 1e, apparently.

no worries. It's done that to a lot of players. I just wanted to mention it before you got too deep into that thinking because I remember from when I was considering an unarmed attack swashbuckler that there are several feats which require a weapon