http://www.ffxiclopedia.org is by far the best database on the web now when it comes to searching for items, etc because it's maintained by the players. However, one area where it's currently severely lacking is in precise descriptions of the mystery effects on all the items. I've compiled a list of all of these items and effects here, if anyone can tell me precisely how it works, I plan to go through and fix all of their item descriptions so that it contains this information. If it corresponds exactly to "Such and Such Trait+5", say that. If it is something like "Grants an extra 6 accuracy when you use the JA", say that. If it increases the duration of an effect, say that. etc etc. Also I know that for the most part AF and AF+1 effects are the same, but I don't know 100% if this is true across the board, so I left those in.
O: Abyss Sollerets - Enhances "Last Resort" Effect
- Reduces [[Last Resort]]'s Defense Down Penalty from 15% to ??%
Abyss Sollerets+1 - Enhances "Last Resort" Effect
- Reduces [[Last Resort]]'s Defense Down Penalty from 15% to ??% (Needs verification)
O: Aegis - Enhances "Shield Bash" Effect
- [[Shield Bash]] Damage +200
O: Barone Corazza - Jump TP Bonus
- Adds an additional 2TP when Jump is used
O: Barone Cosciales - Jump TP Bonus
- Adds an additional 2TP when Jump is used
O: Black Cuisses - Enhances Effect of "Absorb" Spells
- Increases duration of absorb effect by 10 seconds.
O: Black Gadlings - Enhances Effect of "Absorb" Spells
- Increases duration of absorb effect by 10 seconds.
O: Black Sallet - Enhances Effect of "Absorb" Spells
- Increases duration of absorb effect by 10 seconds.
O: Black Sollerets - Enhances Effect of "Absorb" Spells
- Increases duration of absorb effect by 10 seconds.
O: Brutal Earring - Enhances "Double Attack" Effect
- Double Attack +5%
O: Chaos Burgeonet - Enhances "Souleater" Effect
- Adds an additional 2% HP converted to damage. Caps at 12%
- Accuracy+20 while Souleater is active
O: Chaos Burgeonet+1 - Enhances "Souleater" Effect
- Adds an additional 2% HP converted to damage. Caps at 12% (Needs verification)
- Accuracy+20 while Souleater is active (Needs verification)
O: Chaos Sollerets - Enhances "Arcane Circle" Effect
- Increases duration of [[Arcane Circle]] by 30 seconds.
O: Chaos Sollerets+1 - Enhances "Arcane Circle" Effect
- Increases duration of [[Arcane Circle]] by 30 seconds. (Needs verification)
O: Drachen Armet - Wyvern Uses Breaths More Effectively
- A Defensive wyvern will use Healing Breath when HP is at 50% or less.
- A Multipurpose wyvern will use Healing Breath when HP is at 33% or less.
- An Offensive wyvern will use Elemental Breaths to exploit a monster's weakness.
O: Drachen Armet+1 - Enhances "Spirit Link" Effect
- Increases the cap for HP return when using Spirit Link.
O: Drachen Brais - Enhances "Ancient Circle" Effect
- Increases duration of [[Ancient Circle]] by 30 seconds.
O: Drachen Brais+1 - Enhances "Ancient Circle" Effect
- Increases duration of [[Ancient Circle]] by 30 seconds.(Needs verification)
O: Drachen Greaves - Enhances "Jump" Effect
- Increases Enmity Down effect when using [[Jump]], [[High Jump]], or [[Super Jump]].
O: Drachen Greaves+1 - Enhances "Jump" Effect
- Increases Enmity Down effect when using [[Jump]], [[High Jump]], or [[Super Jump]].
O: Duelist's Tabard - Enhances "Fast Cast" Effect
- Spellcasting time -10%
- Spell recast time -5%
O: Duelist's Tabard+1 - Enhances "Fast Cast" Effect
- Spellcasting time -10%
- Spell recast time -5%
O: Fighter's Calligae - Enhances "Double Attack" Effect
- Double Attack +1~2%
O: Fighter's Calligae+1 - Enhances "Double Attack" Effect
- Double Attack +1~2% (Needs verification)
O: Gallant Leggings - Enhances "Holy Circle" Effect
- Extends duration of [[Holy Circle]] by 30 seconds.
O: Gallant Leggings+1 - Enhances "Holy Circle" Effect
- Extends duration of [[Holy Circle]] by 30 seconds.
O: Homam Corazza - Enhances "Triple Attack" Effect
- Triple Attack +2.5%
O: Homam Cosciales - Enhances "Fast Cast" Effect
- Spellcasting time -3%
- Spell recast time -2%
O: Hunter's Bracers - Enhances "Shadowbind" Effect
- Increases duration of Bind effect by 25 seconds.
O: Hunter's Bracers+1 - Enhances "Shadowbind" Effect
- Increases duration of Bind effect by 25 seconds.
O: Hunter's Bracers+1 - Enhances "Barrage" Effect
- Increases number of shots in barrage by 1.
O: Koga Hakama - Enhances "Dual Wield" Effect
- Combined delay of both weapons reduced by an additional 5%.
O: Koga Hakama+1 - Enhances "Dual Wield" Effect
- Combined delay of both weapons reduced by an additional 5%.
O: Koga Hatsuburi - Enhances ninjutsu damage
- 5% damage bonus for elemental Ninjutsu spells.
O: Koga Hatsuburi+1 - Enhances ninjutsu damage
- 5% damage bonus for elemental Ninjutsu spells.
O: Loquacious Earring - Enhances "Fast Cast" Effect
- Spellcasting time -3%
- Spell recast time -2%
O: Melee Gloves - Enhances "Chakra" Effect
- Raises Chakra VIT modifier by 0.6.
- Removes Disease
O: Myochin Kabuto - Enhances "Meditate" Effect
- Increases TP from Meditate by 20-40
O: Ninja Chainmail - Enhances "Dual Wield" Effect
- Combined delay of both weapons reduced by an additional 5%.
O: Ninja Chainmail+1 - Enhances "Dual Wield" Effect
- Combined delay of both weapons reduced by an additional 5%.
O: Pahluwan Khazagand - Increases rate of critical hits
- Critical Hit Rate +2~3%.
O: Rogue's Poulaines - Increases "Flee" Duration
- Increases duration of Flee by 15 seconds.
O: Rogue's Poulaines+1 - Increases "Flee" Duration
- Increases duration of Flee by 15 seconds.
X: Roshijinpachi - Enhances Effect of Rice Balls
- Enhances Effect of Rice Balls.
O: Saotome Haidate - Enhances "Third Eye" Effect
- Causes Third Eye to have a 25% chance to counter the next attack.
O: Saotome Haidate+1 - Enhances "Third Eye" Effect
- Causes Third Eye to have a 25% chance to counter the next attack.
O: Saotome Kote - Enhances "Meditate" Effect
- Increases TP from Meditate by 20-40
O: Saotome Kote+1 - Enhances Meditate Effect
- Increases TP from Meditate by 20-40
O: Spharai - Enhances "Counter" Effect
- Counter+10
X: Stone Gorget - Enhances "Stoneskin" Effect
- Absorbs an additional 30 points of damage.
O: Suppanomimi - Enhances "Dual Wield" Effect
- Combined delay of both weapons reduced by an additional 5%.
O: Temple Crown - Enhances "Focus" Effect
- Increases accuracy bonus during Focus by 10.
- Effect persists if crown is removed.
X: Temple Crown+1 - Enhances "Focus" Effect
- Increases accuracy bonus during Focus by 10.
- Effect persists if crown is removed.
O: Temple Cyclas - Enhances "Chakra" Effect
- Raises Chakra VIT modifier by 1x.
- Removes Paralyze
O: Temple Gaiters - Enhances "Dodge" Effect
- Increases evasion bonus during [[Dodge]] by 10. (unconfirmed)
- Effect persists if gaiters are removed. (unconfirmed)
O: Temple Gaiters+1 - Enhances "Dodge" Effect
- Increases evasion bonus during [[Dodge]] by 10. (unconfirmed)
- Effect persists if gaiters are removed. (unconfirmed)
O: Temple Gloves - Enhances "Boost" Effect
- Increases [[Boost]] inherent attack bonus by 5.5%.
- Increases [[Boost]]'s inherent [[Chi Blast]] damage bonus by 5.5%.
- Effect persists if gloves are removed.
O: Temple Gloves+1 - Enhances "Boost" Effect
- Increases [[Boost]] inherent attack bonus by 5.5%.
- Increases [[Boost]]'s inherent [[Chi Blast]] damage bonus by 5.5%.
- Effect persists if gloves are removed.
X: Trollbane - Increases rate of critical hits
- Critical Hit Rate +5%.
X: Valor Coronet - Enhances "Rampart" Effect
- Increases duration of [[Rampart]] by 15 seconds.
X: Valor Coronet+1 - Enhances "Rampart" Effect
- Increases duration of [[Rampart]] by 15 seconds.
X: Valor Gauntlets - Enhances "Shield Bash" Effect
- Increases the chances that [[Shield Bash]] will stun the target.
X: Valor Gauntlets+1 - Enhances "Shield Bash" Effect
- Increases the chances that [[Shield Bash]] will stun the target.
X: Valor Leggings - Enhances "Sentinel" Effect
- Increases [[Sentinel]]'s inherent defense bonus by 5%.
X: Valor Leggings+1 - Enhances "Sentinel" Effect
- Increases [[Sentinel]]'s inherent defense bonus by 5%. (unconfirmed)
O: Valor Surcoat - Enhances "Cover" Effect
- Convert 20% of damage taken to MP while Cover is active
X: Valor Surcoat+1 - Enhances "Cover" Effect
- Convert 20% of damage taken to MP while Cover is active (needs verification)
X: Warlock's Chapeau - Enhances "Fast Cast" Effect
- Spellcasting time -10%
- Spell recast time -5%
X: Warlock's Chapeau+1 - Enhances "Fast Cast" Effect
- Spellcasting time -10%
- Spell recast time -5%
X: Warlock's Mantle - Enhances "Fast Cast" Effect
- Spellcasting time -3%
- Spell recast time -2%
O: Warrior's Calligae - Enhances "Berserk" Effect
- Reduces Defense Down Penalty from 25% to 15%
X: Warrior's Calligae+1 - Enhances "Berserk" Effect
- Reduces Defense Down Penalty from 25% to 15% (needs verification)
O: Warrior's Lorica - Enhances "Aggressor" Effect
- Reduces the loss of evasion when Aggressor is active
X: Warrior's Lorica+1 - Enhances "Aggressor" Effect
- Reduces the loss of evasion when Aggressor is active
X: Warrior's Mask - Enhances "Warcry" Effect
- Increases duration of Warcry from 30 seconds to 45 seconds
- Effect persists if mask is removed.
X: Warrior's Mask+1 - Enhances "Warcry" Effect
- Increases duration of Warcry from 30 seconds to 45 seconds
- Effect persists if mask is removed.
X: Wyrm Brais - Enhances "High Jump" Effect
- Increases Enmity down effect when using [[High Jump]].
X: Wyrm Brais+1 - Enhances "High Jump" Effect
- Increases Enmity down effect when using [[High Jump]].
X: X's Knife - Increases Critical Hit Damage
- Increases [[pDIF]] by 0.3 for each critical hit.
- When dual-wielding, only applies to critical hits from X's Knife.
Post Information about the following items!!!
Abtal Jawshan - Increases rate of critical hits
Andvaranauts - Enhances "Gilfinder" Effect
Assassin's Bonnet - Enhances "Mug" Effect
Assassin's Bonnet+1 - Enhances "Mug" Effect
Assassin's Culotte - Enhances "Gilfinder" Effect
Assassin's Culotte+1 - Enhances "Gilfinder" Effect
Assassin's Vest - Increases rate of critical hits
Beast Gaiters - Enhances "Reward" Effect
Beast Gaiters+1 - Enhances "Reward" Effect
Beast Helm - Increases tame success rate
Beast Helm+1 - Increases tame success rate
Beast Jackcoat - Enhances "Reward" Effect
Beast Jackcoat+1 - Enhances "Reward" Effect
Blessed Briault - Increase Effect of Elemental Resistance Spells
Bushido Cape - Enhances "Zanshin" Effect
Chaos Gauntlets - Enhances "Weapon Bash" Effect
Chaos Gauntlets+1 - Enhances "Weapon Bash" Effect
Cleric's Mitts - Enhances "Banish" Effect
Cleric's Mitts+1 - Enhances "Banish" Effect
Conte Corazza - Jump TP Bonus
Conte Cosciales - Jump TP Bonus
Corsair's Tricorne - Enhances "Quick Draw" Effect
Crude Sword (Does this even exist?) - Enhances "Bash" Effects
Dia Wand - Enhances "Cure" Potency, Enhances "Dia" Effect
Drachen Fng. Gauntlets - Enhances Wyvern Accuracy
Drachen Fng. Gauntlets+1 - Enhances Wyvern Accuracy
Drake Ring - Enhances "Jump" Effect
Duelist's Tights - Enhances "Spikes" Effect
Duelist's Tights+1 - Enhances "Spikes" Effect
Evoker's Pigaches - Enhances Avatar Evasion
Evoker's Pigaches+1 - Enhances Avatar Evasion
Evoker's Spats - Enhances Avatar Accuracy
Evoker's Spats+1 - Enhances Avatar Accuracy
Gallant Coronet - Enhances "Cover" Effect
Gallant Coronet+1 - Enhances "Cover" Effect
Gloom Breastplate - Enhances "Souleater" Effect
Hunter's Beret - Increases Rapid Shot Activation Rate
Hunter's Beret+1 - Increases Rapid Shot Activation Rate
Hunter's Braccae - Enhances "Sharpshot" Effect
Hunter's Braccae+1 - Enhances "Sharpshot" Effect
Hunter's Jerkin - Enhances "Camouflage" Effect
Hunter's Jerkin+1 - Enhances "Camouflage" Effect
Hunter's Socks - Enhances "Scavenge" Effect
Hunter's Socks+1 - Enhances "Scavenge" Effect
Knightly Earring - Enhances "Shield Bash" Effect
Magus Keffiyeh - Enhances monster correlation effects
Melee Gaiters - Enhances "Counterstance" Effect
Melee Gaiters+1 - Enhances "Counterstance" Effect
Melee Gloves+1 - Enhances "Chakra" Effect
Monster Gaiters - Enhances "Reward" Effect
Monster Gaiters+1 - Enhances "Reward" Effect
Monster Gloves - Enhances "Call Beast" Effect
Monster Gloves+1 - Enhances "Call Beast" Effect
Monster Jackcoat - Enhances "Reward" Effect
Monster Jackcoat+1 - Enhances "Reward" Effect
Myochin Domaru - Occasionally boosts TP when damaged
Myochin Domaru+1 - Occasionally boosts TP when damaged
Myochin Kabuto - Enhances Warding Circle Effect
Myochin Kote - Enhances Effect of Rice Balls
Myochin Kote+1 - Enhances Effect of Rice Balls
Ogre Gloves - Enhances "Reward" Effect
Ogre Gloves+1 - Enhances "Reward" Effect
Onyx Cuisses - Enhances Effect of "Absorb" Spells
Onyx Gadlings - Enhances Effect of "Absorb" Spells
Onyx Sallet - Enhances Effect of "Absorb" Spells
Onyx Sollerets - Enhances Effect of "Absorb" Spells
Ragnarok - Increases rate of critical hits
Rogue's Vest - Increases "Hide" Duration
Rogue's Vest+1 - Increases "Hide" Duration
Rostrum Pumps - Enhances "Fast Cast" Effect
Sable Cuisses - Enhances "Souleater" Effect
Scout's Jerkin - "Rapid Shot"+5
Scout's Jerkin+1 - "Rapid Shot"+5
Sipahi Jawshan - Increases rate of critical hits
Skulker's Cape - Enhances "Invisible" Effect, Enhances "Sneak" Effect
Summoner's Bracers - Enhances Avatar Accuracy
Summoner's Bracers+1 - Enhances Avatar Accuracy
Summoner's Pigaches - Enhances Avatar Attack
Summoner's Pigaches+1 - Enhances Avatar Attack
Temple Cyclas+1 - Enhances "Chakra" Effect
Wyrm Armet - Enhances Effect of Wyvern's Breath
Wyrm Armet+1 - Enhances Effect of Wyvern's Breath
Zoraal Ja's Axe - Enhances "Reward" Effect
I know I've missed a few, but this was tedious as fuck, I might fill in the blanks later lol.
Edit: Updated known effects.