Three ranged weapons, multiweapon fighting, rapid shot

[ICrushGames]

So I have in my hands an ultimate psionics, a core and a bestiary 4. using basic rules from all three, I need some help figuring out how this works.

I have a kasatha character with multiweapon fighting, rapid shot, mulitshot, and the small form of soul bolt from the archetype of soul knife in the back of the book. At BAB 6/1 how many attacks can I make with three ranged weapons and a full attack?

I believe I would get -6 with each attack, so I would get 0/0/0/-5/-5/-5
first attack at 2x damage.

Finally, before you tell me to ask my DM, I am the DM.

[Nefreet]

Since this question deals with 3rd Party Content, the best place to ask this question would be HERE, where people that are familiar with Psionics can answer you best.

[themightyjello]

Well, here's the thing about that.

As a Kasatha with multiweapon fighting you get 3 offhand attacks, and with a 6/1 BAB and rapid shot you get 3 iterative attacks with your main hand. Using multiweapon fighting and rapid shot would give you two -2 penalties to your attack roll.

Multishot, as far as I can find, is not a thing. If you're talking about Manyshot that specifically requires a bow and soul bolts are neither specifically a bow nor are they even the same type of ranged weapon (they are thrown, rather than fired).

So anyway. About the soul bolt. It does specifically say that you don't need an action to reform it after it is thrown, and that this allows you to use feats such as rapid shot with it. Using the small form does specifically say that you don't need an extra hand for it, so you're good on that.

But two-weapon (or multiweapon) fighting actually requires you to have more than one weapon. Just like you can't make 2 main hand attacks with a dagger and then pass it to your off hand as a free action to make 2 more, you can't make 3 iterative attacks with a thrown soul knife and then make attacks with the soul knife with each of your off hands. You actually need a separate weapon for each hand. The soul bolt ability does not specifically say that you can form more than one bolt at a time but it does specify that it is locked into one form once you create it and it takes a full-round action to change it to another form so you should assume that you're not intended to have multiple of them at once.

So (barring this multishot feat that I can't find) your +6/+1 BAB, four arms, multiweapon fighting, and rapid shot feats would entitle you to +2/+2/-3 with your main hand using the soul bolt, and +2 with each of your 3 off hands using a different weapon. So six attacks, if you're using all four arms to throw weapons.

Since you specified 3 weapons, that would be 3 attacks with the main hand and 2 attacks with other hands for a total of 5 attacks.