[PF] Mr. Hyde Alchemist Clarifications

[AtS]

I've been working on a Mr. Hyde (http://pathfinder.ogrehut.com/2010/07/alchemists-guide-mr-hyde/) Alchemist build for a Pathfinder game I'm about to join, and I had a couple of questions and misconceptions that I needed cleared up before I'm done.

Namely, I need to better understand how the Feral Mutagen (http://www.d20pfsrd.com/classes/base-classes/alchemist/discoveries/paizo---alchemist-discoveries/feral-mutagen), Tentacle (http://www.d20pfsrd.com/classes/base-classes/alchemist/discoveries/paizo---alchemist-discoveries/tentacle-ex), and Vestigal Arm (http://www.d20pfsrd.com/classes/base-classes/alchemist/discoveries/paizo---alchemist-discoveries/vestigial-arm-ex) discoveries interact with wielding a manufactured weapon. The errata'd rules (http://www.d20pfsrd.com/extras/pathfinder-faq#TOC-Natural-Attacks-and-Weapon-Attacks-) state that mixing natural and manufactured attacks works like how it did in 3.5 - with all of the natural attacks becoming secondary attacks and thus attacking at BAB-5.

Here's the question I have, though. The Vestigal Arm and Tentacle Discoveries state that they DO NOT give the alchemist any extra attacks or actions, but they CAN wield a weapon.

So, is it possible for a level 20 Alchemist with one Vestigial Arm or Tentacle and the Multiattack (http://www.d20pfsrd.com/feats/monster-feats/multiattack-combat) feat wielding a Longsword in the Arm or Tentacle to make a full attack including +15/+10/+5 Longsword, +13 Bite, & 2 +13 Claw attacks?

[Doorhandle]

...Hmmm. I have no idea. Looks legit, insofar as anything that makes the G.M go WTF BANNED is legit.

[Larpus]

Can be read both ways.

Straight RAW tho, looks like the Vestigial Arms and Tentacles never give you extra attacks of any sort, so it wouldn't work.

However, unless it's a tier3- group and not optimized at all, I don't see anything too wrong about it, so I'd allow if I were the DM.

Another thing worthy of consideration is if having a Vestigial Arm would allow you to carry a shield with no penalty on attacks (even without proficiency) or if it would allow to both hold a weapon with two hands and a shield at the same time (or TWF with 2H if you have both Vestigial Arms).

[stack]

My thought is to use the vestigial arms to hold a long spear. You then have reach. Add-in enlarge person for 20' reach, threatening 5-10' with the feral bite/claws. You can't full attack with the spear and claws/bite, but you can take combat reflexes for a lock-down build.

You are never gaining extra attacks, as you can use the spear (with reach) or the claws/bite (maybe claw/bite/spear if you are counting total number of attacks, saying the clause denying extra attacks sets a cap on the number of attacks total, in this case 3).

[Bhaakon]

My thought is to use the vestigial arms to hold a long spear. You then have reach. Add-in enlarge person for 20' reach, threatening 5-10' with the feral bite/claws. You can't full attack with the spear and claws/bite, but you can take combat reflexes for a lock-down build.

You are never gaining extra attacks, as you can use the spear (with reach) or the claws/bite (maybe claw/bite/spear if you are counting total number of attacks, saying the clause denying extra attacks sets a cap on the number of attacks total, in this case 3).

Hmm, never thought of that. Seem like a completely raw way to get 2-weapon fighting with two 2-handed weapons at full 2-handed STR and power attack bonus. Unless I'm missing something.