Barbarian Weapon Thrower feat ruling. PLs help.

[Lost Lich]

HI guys, I wanna play a Barbarian - Hurler that throws weapons at enemies, using the Hurling, lesser and its 2 evolutionary forms later on.

Benefit: As a full-round action while raging, the barbarian can lift and hurl an object up to one size category smaller than herself with both hands or two size categories smaller with one hand as an improvised weapon with a range increment of 10 feet. This inflicts damage as a falling object plus the barbarian’s Strength bonus. This damage is halved if the object is not made of stone, metal, or similar material. This is a ranged touch attack, and the target may attempt a Reflex save (DC 10 + 1/2 the barbarian’s level + the barbarian’s Strength modifier) for half damage. The barbarian may apply Power Attack to this attack as a one- or two-handed weapon, as appropriate.

This feat may not seem very amazing at first, but the full-round attack part is lost very easily throughout multiple feats, the halfed damage is not aaaaaaall that critical in the earlier levels and has a high DC later levels and the standard range for me with 1 simple feat is 40 feet. Also later on the Dmg is about 4d6 per attack at its minimum a single size enchantment increaes this by 1d6 each time my characters size is increased.

So anyways, I still have some problems with some ways how this feat applies and hope you can answer that for me:

- Using this feat makes whatever is thrown into a improvised ranged weapon, for the action, does that mean i take a -4 to the roll while i have no THROW ANYTHING feat?

- Does throwing weapons with the use of this feat also turn them into improvised ranged weapons?

- Does Improvised Weapon Mastery apply to this feat and allow me to increase the damage increment of my throws by 1 dice?

- Do normal ranged feats like multishot, poinat-blank shot and the like apply to weapons thrown by this feat?

-Lastly something unrelated: is there a weapon enchantment that allows me to split my weapon into itsy bitsy multiple copies of itself when thrown?

[Kazaan]

- Using this feat makes whatever is thrown into a improvised ranged weapon, for the action, does that mean i take a -4 to the roll while i have no THROW ANYTHING feat?
Nothing states an exemption from it, therefore you use the default rules for an improvised weapon; -4 to attack (but it's vs touch AC so that compensates for it, especially vs heavily armored targets). Throw Anything would cancel that penalty and is a very good idea for this kind of build.

- Does throwing weapons with the use of this feat also turn them into improvised ranged weapons?
I don't see why not. We already have a FAQ saying you can use the butt of your reach weapon as an improvised club so if you throw a dagger using this ability, you'd treat it as an improvised ranged weapon and it would deal damage not as a thrown dagger but rather as falling damage. Essentially, you're not trying to hit them with the blade of the dagger but clobbering them with the butt of the dagger.

- Does Improvised Weapon Mastery apply to this feat and allow me to increase the damage increment of my throws by 1 dice?
This gets a little tricky. Technically, you're not dealing weapon damage with this method but falling object damage. Now, if you were using a kitchen knife as an improvised dagger, no doubt IWM would work fine because you're actually throwing it as you'd throw a dagger (attacking with the blade part). But hurling doesn't function like that; you're just using it as a solid piece of mass to throw. So I's day no, IWM doesn't apply to Hurling.

- Do normal ranged feats like multishot, poinat-blank shot and the like apply to weapons thrown by this feat?
Multi-shot, not because it requires a full-attack action and Hurling is a full-round Use Special Ability action. Point-blank Shot applies whenever you make a ranged attack so it's fine, at least for the attack bonus; though as with the previous question, it's questionable whether the attack bonus from PBS applies since it's technically not weapon damage.

-Lastly something unrelated: is there a weapon enchantment that allows me to split my weapon into itsy bitsy multiple copies of itself when thrown?
There's an arrow that does that and makes your bow attack an AoE effect vs Reflex save, but I haven't heard of an enhancement that can be placed on any ranged weapon.

[Lost Lich]

Thanks for that answer, very helpful, I just saw I forgot 1 and misworded another question, so just one las time if anybody could answer this that would be amazingly kind of you:

- does throwing throwing weapons with this feat make them improvised weapons. (As to say, hurling a throwing axe)

- while raging, when i have this feat and my weapon of choice at hand, do enemies within my hurling range provoke attacks of opportunities from me?

[Kazaan]

Yes. Any object can be thrown, even a weapon, but it's just treated as a random object. So you can hurl a throwing axe just as easily as a small box and they both would deal the same damage; the throwing axe is no longer treated as a proper weapon so mwk and enhancement and feats that apply to throwing axes wouldn't work.

Ranged attacks don't threaten unless you have Snap Shot and weapon focus in the ranged weapon. Weapon Focus doesn't apply to improvised weapons so it's a no-go.