Heat of the Fey Human, +1 Ref, Will saves
Human Feat:Combat Reflexes
1st level:
Studied Target, Track Iron Will
2nd level:
Slayer Talent: Ranger Combat Style Feat 1 - TWF
3rd level:
Sneak Attack 1d6 Power Attack
4th level: Slayer Talent: Unbalancing Trick (Trip)
5th level:
2nd Studied Target, Extra Talent Jaguar's Grace
6th level:
Sneak Attack 2d6, Slayer Talent: Ranger Combat Style Feat 2: Improved Two Weapon Fighting
Slayer favored Class Ability: Rogue Talent: Underhanded Trick (Dirty Trick)
7th level:
StalkerFeat: Extra Talent: Jaguar's Pounce
8th level:
Slayer Talent: Rogue Talent:Combat Trick-Combat Expertise
9th level:
Sneak Attack 1d6, Feat: Greater Trip
10th level:
3rd Studied Target, Advanced Talents, Slayer Talent: Opportunist
11th level:
Swift Tracker, Feat: Quick Dirty Trick
12th level:
Sneak Attack 4d6, Slayer Talent: Ranger Combat Style Feat 3 - Two Weapon Rend, Slayer Favored Class Ability: Ninja Advanced Trick - Feat: Greater Dirty Trick
13th level:
Slayer's Advance 1/day, Feat: Dirty Trick Master
14th level:
Quarry, Slayer Talent: Ranger Combat Style 3: GTWF
15th level:
4th Studied Target, Sneak Attack 15d6Feat: Critical Focus
16th level:
Slayer Talent: Feat: Blinding Critical
17th level:
Slayer's Advance 2/day, Feat: Kitsune Style
18th level:
Sneak Attack 6d6, Slayer Talent: Rogue Talent: Sneaking Precision, Slayer Favored Class Ability:Surprise Manuver (or emboldening Strike depending on how often the CM's succeed)
19th level:
Improved Quarry, Feat: Kitsune Tricks
20th level:
5th Studied Target, Master Slayer, Slayer Talent: Advanced Rogue Talent: Armored Murader
Phew, that's one big mess, and I'm not 100% sure how it all adds up, but it does synergize pretty damn well.
**EDIT** To clarify, my proposed fixes are bolded.
Also, consider some weapon properties:
Fortuitous and Menacing.
Keen - Well, duh...
Defiant - Allows you to recharge reroll abilities (like Improved Iron Will) up to an amount equal to your weapon's Enhancement Bonus. I'm sure you can't double-dip this, but great to have on at least one weapon. Oh, and you can't ever forcefully drop it.
Fortuitous - Whenever you make an attack of opportunity, you can make another one right after that at a -5 penalty; only works 1/round. You might be able to make this work with the Double hit feat, creating a whole slew of Attacks of Opportunity (at very high bonuses too), but I'd confirm with the GM about that.
Sneaky - Think Hunter's Surprise, except on your weapon, and doesn't take up a Base Price Bonus. Since you'll be getting the Hunter's Surprise talent, this is good for early on, and Double+Good in the late game.