I made a trait list in response to someone else's thread but figured it would get more attention (give me attention! ) in a dedicated thread, well actually I just figured more people who would want to see it, had a chance to see it.

The way it was created was, that I went through the trait list in the core file and wrote it all down by hand, so if there is a mistake, blame Kael...
If you find I am missing a trait, or have a better idea of how to list it, please give a reply.

Rough link here: https://www.dropbox.com/s/qpc9v6go37bpzlp/Trait%20List.txt
  Edit: Current computer have a HD that is about to die, so I wont be installing dropbox, and wont be changing this list until my other comp is back from repairs.

  The "Prereq:" is the trait that is required for the first item in the list, the secondary items are only requiring the first item (Lethal II only requires Lethal I, not "Path Of The Warrior")
   The list is subject to me missing an item or two (I missed "Fast" the first time around), It does get tiresome looking through the text mindlessly copying the important text (its mixed in with unit traits, sovereign traits, and faction traits).
  The benefits of upgradeable traits are cumulative, level 3 lethal grants a total of +9 bonus to cutting, blunt or piercing attack (2+3+4 = 9).
  The Chance attribute that I added on the 3rd edit is a number that is only comparable to other chance attributes (in-text-term is "Likelihood"), a 100 is considered "Rare", 200 is "Uncommon" and 400 and above is "Common". The way I figure it works is that a chance of 400 is twice as likely to show up as a chance of 200.

Path Of The Assassin
 Effect: (+15 critical chance, +50% critical damage)
 Minimum lvl: 4
 Chance: 1

Vital Strike: (I, II, III) (+2/+3/+4 to critical chance, +20%/+30%/+40% to critical damage)
 Prereq: PathOfTheAssassin
 Chance: 400/200/100

Dodge: (I, II, III) (+4/5/6 to dodge)
 Prereq: PathOfTheAssassin
 Chance: 400/200/100

Deflect Missiles: (+20 dodge against ranged attacks)
 Prereq: Dodge I
 Chance: 200

Acrobat: (+1 dodge per level)
 Prereq: Dodge 3
 Chance: 100

Double Strike: (Allows the unit to use double strike: Attack twice, but at a -30 accuracy)
 Prereq: PathOfTheAssassin
 Chance: 100

Sweep: (Allows the unit to use the ability Sweep: attack all surrounding enemies)
 Prereq: Double Strike
 Chance: 100
 Note: A player says he gets to pick this without it requiring "Double Strike".

Shadowstrike: (I, II, III) (+25%/+25%/+25% defense ignore)
 Prereq: PathOfTheAssassin
 Chance: 400/200/100

Precision: (I, II, III) (+5/+10/+15 accuracy)
 Prereq: PathOfTheAssassin
 Chance: 400/400/400

Impulsive: (Unit goes first (Unit gets +50 Initiative in the first round of combat))
 Prereq: PathOfTheAssassin
 Chance: 200

Executioner: (I, II, III) (+5/+6/+7 attack vs champions)
 Prereq: PathOfTheAssassin
 Chance: 400/200/100

Gamblers Strike: (Allows the unit to use Gamblers Strike: 50% chance to deal triple damage, 50% chance to miss)
 Prereq: PathOfTheAssassin
 Chance: 100

Charge: (+3 moves and +3 attack on the first turn of combat)
 Prereq: PathOfTheAssassin
 Chance: 100

Marksman: (I, II, III) (+10%/+15%/+20% to pierce damage, and +0/+5/+10 to accuracy)
 Prereq: PathOfTheAssassin
 Minimum lvl: (Marksman I = 5) (Marksman II = 7) (Marksman III = 9)
 Chance: 200/200/100

Truestrike: (Allows the unit to use True Strike: an attack that deals 75% damage, but never misses)
 Prereq: PathOfTheAssassin
 Chance: 200

Path Of The Defender
 Effect: (+20 Weight capacity, +2 hp per lvl)
 Minimum lvl: 4
 Chance: 1

Stun: (Allows the unit to use the ability Stun: normal attack that also stuns the target unless it resists)
 Prereq: PathOfTheDefender
 Chance: 100

Resist Cold: (+50 resistance to cold)
 Prereq: PathOfTheDefender
 Chance: 100

Resist Fire: (+50 resistance to fire)
 Prereq: PathOfTheDefender
 Chance: 100

Obsidian Guard: (I, II, III) (+5/+10/+15 to army's spell resistance)
 Prereq: PathOfTheDefender
 Chance: 200/100/100

Medic: (+1 to army's health regeneration)
 Prereq: PathOfTheDefender
 Chance: 200

Shieldwall: (+3 Defense to army)
 Prereq: PathOfTheDefender
 Chance: 100

Guardian: (I, II, III) (+2/+3/+4 to army's dodge)
 Prereq: PathOfTheDefender
 Chance: 200/100/100

Hobble: (Allows the unit to use Hobble: Normal attack that also reduces movement of target by 1, for 3 turns)
 Prereq: PathOfTheDefender
 Chance: 200

Immune To Counterattack: (Unit doesn't suffer from counterattacks)
 Prereq: PathOfTheDefender
 Chance: 200

Immune to Criticals: (Unit doesn't suffer from critical hits)
 Prereq: PathOfTheDefender
 Chance: 100

Endurance: (I, II, III, IV) (+1/+1/+1/+1 hp per level)
 Prereq: PathOfTheDefender
 Chance: 400/200/200/100

Defender: (I, II, III) (+5/10/15 Defense when defending)
 Prereq: PathofTheDefender
 Chance: 600/200/100

Path Of The Governor
 Effect: (+2 growth, and -15% unrest in the city this unit is stationed in)
 Minimum lvl: 4
 Chance: 1

Administrator: (I, II, III) (10%/15%/20%) unrest in the city this unit is in)
 Prereq: PathOfTheGovernor
 Chance: 100/200/200

Loremaster: (I, II, III) (+1/+2/+3 research per season)
 Prereq: PathOfTheGovernor
 Chance: 100/200/200

Merchant: (I, II, III) (+2/+3/+4 Gildar per season, ignores taxes)
 Prereq: PathOfTheGovernor
 Chance: 100/200/200

Road Building: (Allows the unit to build roads)
 Prereq: PathOfTheGovernor
 Chance: 100

Path Of The Mage
 Effect: (-25% mana cost for tactical spells, +50% spell damage)
 Minimum lvl: 4
 Chance: 1

Summon: (I, II, III) (+1/+1/+1 level to summons)
 Prereq: PathOfTheMage
 Minimum lvl: (Summon I = 3) (Summon II = 5) (Summon III = 7)
 Chance: 400/200/100

Evoker: (I, II, III) (+25%/+25%/+25% bonus spell damage)
 Prereq: PathOfTheMage
 Minimum level: (Evoker I = 3) (Evoker II = 5) (Evoker III = 7)
 Chance: 200/200/100

Prodigy: (I, II, III) (+5/+10/+15 spell mastery)
 Prereq: PathOfTheMage
 Chance: 400/200/100

Affinity: (10% reduced mana cost for tactical spells)
 Prereq: PathOfTheMage
 Chance: 100

Knowledge: (+25% experience earned)
 Prereq: PathOfTheMage
 Chance: 200

Path Of The Warrior
 Effect: (+3 cutting, blunt and pierce attack, +20 weight capacity)
 Minimum lvl: 4
 Chance: 1

Crushing Blow: (You can use crushing blow: +100 attack - but lose next turn)
 Prereq: PathOfTheWarrior
 Chance: 200

Discipline: (+1 accuracy and spell resistance per level)
 Prereq: PathofTheWarrior
 Minimum lvl: (Discipline = 3)
 Chance: 100

Tactician: (I, II, III) (+1/+1/+1 to army initiative)
 Prereq: PathOfTheWarrior
 Chance: 200/100/100

Leadership: (I, II, III) (+5/+10/+15 to army's accuracy)
 Prereq: PathOfTheWarrior
 Chance: 100/100/100

Lethal: (I, II, III, IV, V) (+2/+3/+4/+5/+6 to blunt, pierce or cutting attack)
 Prereq: PathOfTheWarrior
 Chance: 400/200/100/100/100

Rage: (+8 cutting, blunt and pierce attack when under 25% hp)
 Prereq: PathOfTheWarrior
 Chance: 100

Bruiser: (I, II, III) (+ 15%/20%/25% blunt attack per level)
 Prereq: PathOfTheWarrior
 Minimum lvl: (Bruiser I = 5) (Bruiser II = 7) (Bruiser III = 9)
 Chance: 200/200/100

Dragon Slayer: (+10 attack vs dragons)
 Prereq: PathOfTheWarrior
 Minimum lvl: (Dragon Slayer = 9)
 Chance: 100

Always Available

Quick: (+1 Initiative)
 Prereq: Always Available
 Chance: 400

Fast: (+2 Initiative)
 Prereq: Quick
 Chance: 200

Graceful: (+2 Initiative, cannot be knocked prone)
 Prereq: Fast
 Chance: 100

Strength: (+20 weight capacity)
 Prereq: Always Available
 Chance: 200

Brute: (+3 attack vs opponents with a lower level)
 Prereq: Strength
 Chance: 400

Potential: (I, II, III) (+15%/+20%/+25% experience earned)
 Prereq: Always Available
 Chance: 400/200/100

Enmity: (+25% blunt, Cutting and pierce attack vs opposite race (fallen vs men))
 Prereq: Always Available
 Chance: 100

Finesse: (+3 attack vs opponents with lower initiative)
 Prereq: Always Available
 Chance: 200

Spell Resistance: (I, II, III) (+10/+20/+30 to unit's spell resistance)
 Prereq: Always Available
 Chance: 400/200/100

Trainer: (I, II, III) (+10%/+15%/+20% to experience earned by army)
 Minimum lvl: (Trainer I = 5)
 Chance: 200/200/100

Swordsman: (I, II, III) (+10%/+15%/+20% cutting attack, +0/+1/+2 initiative)
 Minimum lvl: (Swordsman I = 5) (Swordsman II = 7) (Swordsman III = 9)
 Chance: 200/200/100

Spell Template, and Sovereign (only) traits

Air: (I, II, III, IV, V) (Cast Air spells)
 Prereq: Trait not available
 Minimum lvl: (Air II = 3) (Air III = 5) (Air IV = 7) (Air V = 9)
 Note: This is the template for all spells, you got to have level 1 in a spelltype before it shows up in the level tree.
 Second Note: You can find a list of spells here https://forums.elementalgame.com/435065, it would take too much space to put them all in here I guess.
 Chance: 0/450/500/550/600

Air Adept: (I, II, III) (Cast Henchmen Air spells)
 Prereq: Trait Not Available
 Note: Haste / Guardian Wind / Storm
 Chance: 0/200/100

Earth Adept: (I, II, III) (Cast Henchmen Earth spells)
 Prereq: Trait Not Available
 Note: Hurl Boulder / Stoneskin / Shockwave
 Chance: 0/200/100

Fire Adept: (I, II, III) (Cast Henchmen Fire spells)
 Prereq: Trait Not Available
 Note: Burning Hands / Flame Dart / Focus
 Chance: 0/200/100

Life Adept: (I, II, III) (Cast Henchmen Life spells)
 Prereq: Trait Not Available
 Note: Aid / Heal / Growth
 Chance: 0/200/100

Water Adept: (I, II, III) (Cast Henchmen Water spells)
 Prereq: Trait Not Available
 Note: Slow / Chaos / Summon Ice Elemental
 Chance: 0/200/100

Attunement: (+2 mana per season)
 Prereq: Trait not available

Brilliant: (+10% experience earned, +2 spell mastery per level)
 Prereq: Trait not available

Hardy: (+1 HP per level, Immune to Poison)
 Prereq: Trait Not Available

Might: (+3 to cutting, pierce and blunt attack)
 Prereq: Trait Not Available

Scholar: (+10% research empire wide)
 Prereq: Trait Not Available

Veteran: (Start as level 2)
 Prereq: Trait Not Available

Wealthy: (+800 gildar at start of the game)
 Prereq: Trait Not Available

Injuries

Afraid of Dying: (-30 Accuracy vs higher level enemies)

Amnesia: (25% penalty to earned XP)

Blind In One Eye: (25% penalty to Accuracy)

Broken Leg: (25% penalty to dodge)

Broken Nose: (10% penalty to hit points)

Chipped Tooth: (50% penalty to poison resistance)

Concussion: (25% penalty to mana cost for tactical spells)

Cracked Skull: (instant 10 penalty to experience points)

Flesh Wound: (10% penalty to hit points)

Gangrene Hand: (-1 to cutting, blunt and piercing attack)

Hallucinations: (+10 bonus to spell mastery, -10 penalty to spell resistance)
 Note: Yea right its a penalty

Missing Ear: (10% penalty to dodge)
Note: The description is "What", but it actually adjusts the dodge unitstat

Pneumonia: (50% penalty to cold resistance)

Rotting Wound: (25% penalty to hit points)

Tis But A Scratch: (No Effect)

Twisted Ankle: (-1 penalty to initiative)

Twisted Knee: (-1 penalty to initiative)

Typhoid Fever: (-1 penalty to the stack's hp)
 Note: This only takes effect to the units stacked with this hero, when he leaves the hp is regained for the other units)
 Second Note: the "Provides" tag is using the old "-2 to army hit points" description, note sure which effect this takes, this is the outcome of sloppy updating.

Edit: Fixed spelling on a few traits, removed the "Loner" entry (Thanks Kalin), and added the "Air Adept" entry.
Edit2: Added True Strike (Thanks to BernieTime)
Edit3: Changed how the text looks, hopefully you will find it easier to read, also added "Chance" which is how likely a specific trait is to pop up (compare it to the other chance numbers).
 Also added the description for henchmen spells, and injuries to the list.
 Also tried to colour code it for easier locating of important items.

Sincerely
~ Kongdej