How can a Gloomblade fighter extend the list of throwable two-handed weapons?

Question

I'm currently building a Gloomblade fighter with the Two-Handed Fighter archetype. The ranged option of this character is thrown shadow weapons, and I am looking for ways to expand the list of options.

I use the Gloomblade and Two-Handed Fighter and apply the bonus of weapon training to shadow two-handed weapons only (it was pointed out below that they do not stack, but please assume they do with GM authorization). I also plan to use Gloomstorm and Two-Handed Thrower (assuming the GM will allow Gloomstorm to count as Quick Draw for the purpose of this feat). This allows me to throw at a full rate of attacks.

Now, the problem I have is that I am restricted to shadow, melee, two-handed weapons with a range increment. There are exactly two of them, the martial Syringe Spear and the simple Spear (as well as five exotic options).

Is there a way to expand this list further? I can forfeit the Weapon Training bonus to throw one-handed weapons having a range increment (adding four additional options), or throw two-handed melee weapons (e.g. a greataxe) at a -4 penalty, but I'm looking for ways to keep both bonuses.

The other techniques that I know are not available because the Throw Anything feat works with improvised (not manufactured) weapons and the Throwing property is not a valid choice for shadow weapons.

Answer 1

Take levels in the brawler class

The martial flexibility ability allows you to become proficient in additional types of weapons for a limited duration, which expands your choice to allow you to summon exotic weapons without spending feats on them.

Martial Master fighter archetype

Similar to the brawler, the Martial Master fighter archetype may become proficient with a type of weapon of their choice. This archetype replaces both weapon training and armor training though.

Ioun stones

The Opalescent White Pyramid ioun stone grants your character proficiency with one type of weapon. The cracked version makes you treat that weapon as being familiar to your character (treat as martial) and costs 1,500 gp.

Be a quick learner tiefling

It is a fairly common combination to be a Quick Learner Tiefling with the Arms Master racial trait, which can reduce the penalty for using a weapon which you are not proficient with to -2 at the first attack and no penalty from then on.

Answer 2

There are a few ways to expand your list of weapons you summon with Gloomblade.

• Exotic Weapon Proficiency: This allows you to expand your list to include weapons that require exotic weapon proficiency. It is slow though, as it only does 1 weapon at a time.

• Improvisational Focus: This makes you proficient with improvised weapons, allowing your gloomblade to summon giant plates to throw with Throw Anything.

• Plead with the GM: If the GM houserules the two archetypes to stack together, see if he'll let gloomblade summon throwing weapons as well, instead of only just melee ones.

_{^{This answer has been edited to be more focused on the question asked, see the edit history for the original answer.}}