Still a work in progress here... The goal is the have at least 3 for every class except Bard because bards suck.

Barbarian
[Barbarian Capstone]
Unbreakable
Prerequisite: Barbarian 6
Your resilience is preternatural.
You gain the following benefits:
> You gain DR 1/-
> When raging, your Constitution bonus is +6. This replaces the normal +4.

[Barbarian Capstone]
Greater Rage
Prerequisite: Barbarian 6, Unbreakable
Your rage grants power beyond what should be possible.
Benefit: When raging, your Strength bonus is +6 and your will save bonus is +3. This replaces the normal +4 and +2, respectively.

[Barbarian Capstone]
Spirit of the Tiger
Prerequisite: Barbarian 6, Unbreakable
You gain the following benefits:
Ø Once per rage, you may, as a swift action before the attack roll is made, gain +3 to damage to a single attack.
Ø When raging, you gain a +6 enhancement bonus to climb, jump, balance, and tumble. When making a jump in this way, you are always considered to have a running start.

[Barbarian Capstone]
Spirit of the Bear
Prerequisite: Barbarian 6, Unbreakable
You gain the following benefits:
Ø While raging you are immune to the sickened and nauseated conditions.
Ø While raging your damage reduction is increased by 2/-

[Barbarian Capstone]
Spirit of the Wolf
Prerequisite: Barbarian 6, Unbreakable
You gain the following benefits:
Ø Once per rage, you may, as a swift action before the attack roll is made, gain +3 to hit to a single attack.
Ø While raging, you may make one additional attack of opportunity per round.

[Barbarian Capstone]
Spirit of the Fox
Prerequisite: Barbarian 6, Unbreakable
You gain the following benefits:
Ø While raging, your movement speed is increased by 10 feet.
Ø Once per rage, you may, as a swift action, experience a moment of clarity that lasts until the beginning of your next turn. During the moment of clarity you do not gain any benefits or experience any penalties related to your rage.


Bard
Bardic Inspiration [Capstone]
Prerequisite: Bard level 6th
Benefit: The bonus granted by your inspire courage ability increases to +2.

Unnatural Charm [Capstone]
Prerequisite: Bard level 6th
Benefit: You gain a +4 Delightful bonus on Charisma-based skill checks.


Cleric
Extra Domain Access [Capstone]
Prerequisites: Wis 18 +, Cleric level 6, Knowledge (religion) 9 ranks, Extra Domain Power, Skill Focus: Knowledge (religion)
Benefit: You gain access to the domain spell list of one additional domain associated with your deity. This domain must be the same one as that chosen for the Extra Domain Power feat. You may only take this feat once.

Extra Domain Power [Capstone]
Prerequisites: Wis 18 +, Cleric level 6, Knowledge (religion) 9 ranks, Skill Focus: Knowledge (religion)
Benefit: You gain the domain power of one additional domain associated with your deity. You may only take this feat once.

Power Over Death [Capstone]
Prerequisites: Cleric level 6
Benefit: For the purposes of turning or rebuking undead, count your level as 3 higher

Monk
Excelling Flurry [Capstone]
Prerequisites: Monk level 6th.
Benefit: You use Flurry of Blows with no penalty to your attack bonus (+4/+4). In addition, you qualify for feats that a Monk may take as 1st, 2nd , or 6th level bonus feats for each new E6 feat.

Swift Body [Capstone]
Prerequisite: Monk level 6th, 5 ranks in Tumble, 5 ranks in Balance
Benefit: You can the use of Improved Evasion.

Resistant Soul [Capstone]
Prerequisite: Monk level 6th, 5 ranks in Knowledge Arcana
Benefit: You gain Spell Resistance 16.


Fighter
[Fighter Capstone]
Martial Veteran
Prerequisite: Fighter 6th
Your experience with weapons is truly exceptional. Gain the following benefits:
> The second attack you make in a round only suffers a -4 penalty instead of a -5 penalty.
> Only for the purposes of qualifying for feats, your base attack bonus is treated as 2 higher (+8).
Special: A fighter may select Martial Veteran with the bonus feat gained with his 6th level of fighter.

[Fighter Capstone]
Experienced Veteran
Prerequisite: Martial Veteran, Fighter 6th
Your experience in battle has given you a knack for surviving when others do not.
Benefit: Each day you may spend ten minutes exercising in preparation for the day. The exercises give you one of the following benefits that day, and the benefits last until you change them.
> Nimble: You gain +1 to reflex saves and any attack that effects an area and deals damage deals 5 less points of damage to you.
> Stable: You gain +1 to fortitude saves and +4 versus disarms, trips, and bullrushes.
> Cunning: You gain +1 to will saves and a +6 to sense motive checks related to wars, battles, or to oppose a bluff check as part of a combat maneuver.

[Fighter Capstone]
Armor Mastery
Prerequisite: Martial Veteran, Fighter 6th
You move in armor easily.
Reduce the armor check penalty of any armor worn by 1. Increase the maximum dex bonus of any armor worn allowed by 1. Treat your strength as 6 higher for determining your movement restrictions with armor.


Paladin
[Paladin Capstone]
Inner Purity
Prerequisite: Paladin 6
Your innate purity and goodness shine through.
You gain the following benefits:
> You can remove disease an extra time each week.
> Your melee attacks are considered good for the purpose of overcoming damage reduction.

[Paladin Capstone]
Hand of Agnelo
Prerequisite: Paladin 6, Inner Purity
Agnelo's mercy flows through you.
You gain the following benefits:
> The maximum number of hit points healed by your Lay on Hands each day increases to 9 times your Charisma modifier.
> You may use Lay on Hands on yourself as a swift action. If you do so, you may only heal up to six hit points with that use of it.

[Paladin Capstone]
Saint Ramsey's Blessing
Prerequisite: Paladin 6, Inner Purity, trained as a member of Saint Ramsey's order
Special: You can never learn this feat if you have learned Pronouncement of Saint Tibrus
You have mastered a prayer said to have been first uttered by Saint Ramsey himself.
Benefit: Whenever you use your lay on hands and spend at least 5 points of your daily healing, it also removes the shaken, fatigued, sickened, and dazed conditions.
Note: If you remove a condition caused by a curse, disease, or poison, the condition will return after an hour unless the root cause is removed before that time.

[Paladin Capstone]
Pronouncement of Saint Tibrus
Prerequisite: Paladin 6, Inner Purity, trained as a member of Saint Tibrus' order.
Special: You can never learn this feat if you have learned Saint Ramsey's Blessing
The law as interpreted by Saint Tibrus is always within your heart.
Benefit: Your melee attacks are considered lawful for the purpose of overcoming damage reduction. When you smite evil, you deal an extra point of damage.

[Paladin Capstone]
Justice Undimmable
Prerequisitie: Paladin 6, Inner Purity
Your sense of justice does not waver, even as Agnelo's might flows through you.
Benefit: If you make a smite evil attempt against a creature, your first attack in the following round against that same creature also gains the benefit of the smite. As normal, this extra smite confers no benefit if the creature is not actually evil.


Ranger
[Ranger Capstone]
Natural Attunement
Prerequisite: Ranger 6
Your mystic natural bond becomes stronger.
You gain the following benefits:
> You gain "Woodland Stride"
Woodland stride: You may move through any sort of undergrowth (such as natural thorns, briars, overgrown areas, and similar terrain) at your normal speed without taking damage or suffering any other impairment. Thorns, briars, and overgrown areas that are enchanted or magically manipulated to impede motion still affect you normally.
> You gain an additional first level ranger spell slot.

[Ranger Capstone]
Wilderness Agility
Prerequisite: Ranger 6, Natural Attunement
You have learned to be as quick as the natural predators of the woods.
You gain the following benefits:
> You gain "Swift Tracker"
Swift Tracker: You can move at your normal speed while following tracks without taking the normal -5 penalty. You take only a -10 penalty (instead of the normal -20) when moving at up to twice normal speed while tracking.
> You gain "Evasion", as a rogue.

[Ranger Capstone]
Boon Companion
Prerequisite: Ranger 6
The bond between you and your animal companion confers him more benefits over others of his kind.
Benefit: Treat your effective druid level as 6 when determining the benefits granted to your animal companion.


Druid
Mighty Wild Shape [Capstone]
Prerequisite: Druid level 6
Benefit: Choose 1 Large animal. You can wild shape into that animal, subject to all normal wild shape restrictions other than size.


Rogue
Roguish Ability [Capstone]
Prerequisite: Rogue level 6th.
Benefit: You learn one rogue special ability.

Liver Slicer [Capstone]
Prerequisite: Rogue level 6, Dexterity 18+
Benefit: Your sneak attack damage goes to +4d6

Eyes All Around [Capstone]
Prerequisite: Rogue level 6, Intelligence 14+
Benefit: Improved Uncanny Dodge


Sorcerer


Wizard


Swashbuckler
[Swashbuckler Capstone]
Acrobatic Charge
Prerequisite: Swashbuckler 6
You gain the following benefits:
> You may charge over difficult terrain that normally slows movement, and you may charge through allies that block your bath. You may run down steep stairs, leap down from a balcony, or tumble over tables to reach your target, though this does not negate the need for appropriate skill checks for movement.
> Your AC penalty from a charge is reduced to by 1 (normally from -2 AC to -1 AC).

[Swashbuckler Capstone]
Improved Flanking
Prerequisite: Swashbuckler 6, Intelligence 15+
Benefit: When making a melee attack, you get a +4 flanking bonus if your opponent is threatened by a character or creature friendly to you on the opponent’s opposite border or opposite corner.
Normal: This bonus is only +2.

[Swashbuckler Capstone]
Partial Charge
Prerequisite: Swashbuckler 6, Acrobatic Charge, 5 ranks in Tumble
Benefit: You may partial charge as a standard action. A partial charge obeys all the normal rules for charging (including benefiting from acrobatic charge), with the following modifications:
> You must be wielding a weapon that Weapon Finesse applies to.
> You only move up to your speed, not up to twice your speed.
> Your Charge AC penalty is increased by 2 (normally this would be 1 with Acrobatic Charge, instead it will be a -3 penalty to AC normally)

[Swashbuckler Capstone]
Revealing Strike
Your strikes highlight the weaknesses in your opponent's armor, showing the way for allies and making it easier for your successive strikes.
Prerequisite: Swashbuckler 6
Benefit: When you strike an opponent and deal Insightful Strike damage to an opponent, you reveal weaknesses in their defenses. If the enemy's AC is below 20, it is reduced by 1. If the enemy's AC is between 20 and 29, it is reduced by 2. If the enemy's AC is 30 or above, it is reduced by 3. The effect is valid for 3 rounds. Multiple instances of Revealing Strike to do not stack, but each new strike will renew the duration to 3 rounds.

[Swashbuckler Capstone]
Precise Strike
If you have even a moment to focus, your strikes deal even more damage.
Prerequisite: Swashbuckler 6
When making precise strikes, you cannot attack with a weapon in your other hand, or use a shield.
During a full attack only, increase your Insightful Strike damage by 6.

I changed a bit of the wording about clocks, but I'm still a bit cross!

The fighter capstone from E6's normally recommended list is the one that gives access to other feats. We should at least point to other feats that this unlocks (we also changed the feat to grant a bonus to the second attack and attacks derived from it, from -5 to -4). This is just because the feat was doing nothing on its own, and this way it will, and we wanted to up the power on those a bit.

But: What feats does this let you have?

> Stunning Fist -> Requires 8 BAB or monk, fighter now qualifies
> Improved Critical -> Requires 8 BAB, fighter now qualifies

Did we want Greater Weapon Focus to qualify? That normally requires Fighter 8th, which the feat doesn't get you. Greater Weapon Spec is also out (12th). But it seems that this feat grants access to more than just Stunning Fist and Improved Critical (which essentially become other fighter capstones). What other feats do we think would be good here?

I think Greater Weapon Focus can qualify. That makes a pretty good set for the fighter.

I really think there should be more than just those three. That actually make me somewhat cross, if it's just code for 'imp crit costs you two feats' then that seems hardly fair.