I'd say the "ultimate weapon master" is the harder of the two, so I'll throw some ideas around.
Options:
1) Don't use anything in the Weapon Focus Chain.
This is probably the easiest way to resolve this. Be good at what you do no matter what your weapon is.
2) Do use the Weapon Focus Chain.
- Use psychic reformation to change your feats in the middle of combat. Since you're epic level, maybe the XP cost is negiglible. Otherwise give him a way to avoid the cost.
- Homebrew.
A free-action aptitude change is hardly any more powerful than the first level warblade ability. Except if you were to lose your weapon all the time (which you shouldn't). If want him to be able to use his Aptitude with two weapons at once, though, that's more powerful and would make a half-decent feat. Since you'd still require feats for TWF to make use of it, though, it's still not a terribly good feat. The prereqs would depend on how much you want your players to use/not use the feat. I'm assuming you want the NPC to be as unique as possible, so I put heavy prereqs in. My suggestion:
Extraordinary Weapon Aptitude (or 'Genius Weapon Master' if you don't like the similarity to the warblade ability)
Prerequisites: One of the following: Melee Weapon Mastery (piercing), Melee Weapon Mastery (slashing), Melee Weapon Mastery (blunt), Ranged Weapon Mastery
Benefit: You apply every feat that usually applies only to a single kind of weapon (such as Weapon Focus) to all weapons that receive a bonus from any of the prerequisite feats that you possess.
Special: A fighter may select this as one of his fighter bonus feats.
I think that's a feat the designers could've come up with. That is, you need to keep in mind that in general, it's a giant waste of feats.
You may need to tweak the wording a bit so this feat qualifies you for another use of Meele Weapon Mastery (this is definitely possible with blunt/piercing, since the morningstar specifies blunt
and piercing; your job is to find one more 'hybrid' weapon). Then you'll only have to purchase the chain one time, and get to apply every last feat of it to all weapons you have.
If you don't care that everyone and their mother can do similar things, use this version:
Improved Weapon AptitudePrerequisites: Weapon Aptitude ability
Benefit: You can take a standard action to make yourself familiar with a weapon. Also, you can designate several weapons at once for the feats weapon aptitude applies to. For example, you can wield a longsword and a morningstar and have the benefit of weapon aptitude apply to both at once.
This otherwise works like the Warblade's weapon aptitude ability.
Normal: It takes about an hour of training to make yourself familiar enough with a weapon to put your weapons training to use with it, and you can only designate one weapon per feat that weapon aptitude applies to.
Of course, fixing the fighter (and fighter feats) in the first place would probably be a better option, but it would take a lot of work and if you've followed some threads here, people don't really agree on how eaxctly to do that.
