Named item sets

Item sets give bonuses when you are wearing 2 or more items in the set.

Korthos Island Item Sets
The first item in the set is an End Quest Reward Item from the Sacrifices Quest, the second item in the set is an End Quest Reward item from the The Salvation of Korthos (Misery's Peak) Quest.

Anger's Set

 * Anger's Step - Boots: Expeditious Retreat (CL:1, 2/rest), Jump +3
 * Anger's Gift - Necklace: Strength +1, Resistance +1
 * Set Bonus - To-Hit Bonus +2 (untyped?, stacks with competence)

Arcane Set

 * Arcane Goggles - Goggles: Concentration +3, Power I
 * Arcane Necklace - Necklace: Intelligence +1, Charisma +1
 * Set Bonus - 15% improvement to 1st level spells

Archivist's Set

 * Archivist's Goggles - Goggles: Concentration +3, Power I
 * Archivist's Necklace - Necklace: Minor Mnemonic Enhancer (doesn't cure Feeblemind)
 * Set Bonus - Spell Points +20

Devoted Set

 * Devoted Goggles - Goggles: Heal +3, Power I
 * Devoted Necklace - Necklace: Wisdom +1, Resistance +1
 * Set Bonus - +20% Healing to 1st level spells

Nimble Set

 * Nimble Grasp - Gloves: Tumble +3, Striding 5%
 * Nimble Brooch - Necklace: Dexterity +1, Resistance +1
 * Set Bonus - To-Hit Bonus +1, +2 Damage to Sneak Attacks

Pathfinder's Set

 * Pathfinder's Boots - Boots: Tumble +3, Striding 5%
 * Pathfinder's Necklace - Necklace: Dexterity +1, Resistance +1
 * Set Bonus - To-Hit Bonus +2

Protector's Set

 * Protector's Gloves - Gloves: Intimidate +3, DR 1/-
 * Protector's Brooch - Necklace: Strength +1, Resistance +1
 * Set Bonus - Light Fortification, Insight AC Bonus +1

Troubleshooter's Set

 * Troubleshooter's Goggles - Goggles: Spot +3, Listen +3
 * Troubleshooter's Necklace - Necklace: Dexterity +1, Resistance +1
 * Set Bonus - AC +1, Open Lock +3, Disable Device +3 (currently bugged; AC bonus does not take effect)

Subterrane raid and Dragontouched Item Sets
Dragontouched Armor is gained by completing the Stealer of Souls quest in Reaver's Refuge, you will be given 50 Draconic Runes so that you can purchase the Armor from the Vendor near the Crafting Altars.

Glacial Assault Set

 * Bracers of the Glacier - Bracers: Archmagi,, Fire Shield (cold version, 10% chance when attacked)
 * Gloves of the Glacier - Gloves: ,
 * Dragontouched Armor - Glacial Assault Sovereign Tier Property
 * 2 Item Set Bonus -
 * 3 Item Set Bonus -
 * A Vision of Destruction Loot (Suulomades warded chest)

Levik's Defender Set

 * Levik's Bracers - Bracers: Levik's Defender, Healing Amplification 20%,
 * Levik's Defender - +5 Mithral Tower shield (Blocking DR 15 (base 8)): Levik's Defender,, Healer's Bounty (2% chance of casting Heal spell when damaged)
 * Dragontouched Armor - Levik's Defender Sovereign Tier Property
 * 2 Item Set Bonus - +3 Insight Bonus to AC, 20% Additional Melee Threat, Unlisted Fortitude and Will Save +1 (Stacks)
 * 3 Item Set Bonus - +5 insight AC, 30% Additional Melee Threat
 * Hound of Xoriat Loot (Xy'zzy Warded Chest)

Lorrik's Champion Set

 * Lorikk's Champion - +5 Mithral Large Shield (Blocking DR 15 (base 8)): Lorrik's Champion, Eternal Faith,
 * Mithral property on this shield is currently broken, players still suffer -15% Arcane spell failure and -1 Armor check penalty
 * Lorrik's Necklace - Necklace: Lorrik's Champion,, ,
 * Dragontouched Armor - Lorikk's Champion Sovereign Tier Property
 * 2 Item Set Bonus -
 * 3 Item Set Bonus -
 * Hound of Xoriat Loot (Xy'zzy Warded Chest)

Tharne's Wrath Set

 * Tharne's Bracers - Bracers:, Armor Bonus +6
 * Tharne's Goggles - Goggles: Backstabbing +5, True Seeing, ,
 * Dragontouched Armor - Tharne's Wrath Sovereign Tier Property
 * 2 Item Set Bonus - Ghost Touch and -20% Melee Threat
 * 3 Item Set Bonus - Feather Falling
 * A Vision of Destruction Loot (Suulomades warded chest)

Prestige Enhancements Item Sets
These item sets appeared as from Module 9, you must be at least 18th level in one class to have the Prestige Enhancement requirements. Some items may not have requirements but are still based on being a Prestige Class.

They may be found as chest loot in the Devil Battlefield - belts and necklaces are from flagging quests and Tower of Despair Shadowmaster chest, rings are from Tower of Despair Horoth end chest.

Thanks to Cleanup of Ghallanda for compiling the list of items and making them available on the DDO Forums at http://forums.ddo.com/showthread.php?t=185777

Air Savant (Sor)

 * Calitomes' Sash - Belt: Superior Spark VIII (CL:1, 3/3), Wizardry VI [ Sins of Attrition ]
 * Calitomes' Ring - Ring: Charisma +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: Electricity Spells +5% chance to Spell Critical Hit, Critical Damage Multiplier increased by 0.50

Arcane Archer (Rng)

 * Gilvaenor's Necklace - Necklace: Constitution +6, Attack Bonus +2 [ Genesis Point ]
 * Gilvaenor's Ring - Ring: Dexterity +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: Ranged alacrity 10% (competence, stacks to enhancement bonuses such as Haste spell)

Archmage (Wiz)

 * Rahkir's Sash - Belt: Archmagi, Superior Efficacy VIII (CL:1, 3/3) [ A New Invasion ]
 * Rahkir's Ring - Ring: Intelligence +6, Exceptional Intelligence +1, Incredible Potential
 * Set Bonus: All spells gain +5% chance to Spell Critical Hit, Critical Damage Multiplier increased by 0.50

Assassin (Rog)

 * Awanahu Sash - Belt: Constitution +6, Proof Against Poison [ Sins of Attrition ]
 * Whisper Ring - Ring: Dexterity +6, Exceptional Intelligence +1, Incredible Potential
 * Set Bonus: Bonus To-Hit and Damage to Sneak Attacks, 20% less threat
 * If have Assassin III Enhancement: chance with weapons to apply a Level Drain effect.

Deepwood Sniper (Rng)

 * Connor's Pendant - Necklace: Constitution +6, Hide +15 [ A New Invasion ]
 * Connor's Band - Ring: Dexterity +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: 5% Ranged Alacrity, +2 To-Hit

Defender of Siberys (Pal)

 * Belt of the Defenders of Siberys - Belt: Constitution +6, Greater False Life [ Genesis Point ]
 * Band of Siberys - Ring: Strength +6, Exceptional Charisma +1, Incredible Potential
 * Set Bonus: 15% additional threat from melee attacks
 * If have Defender of Siberys III enhancement: +2 AC (stacking)

Dragonmark Heir

 * Dragonmarked Necklace - Necklace: Constitution +6, Minor Lesser Dragonmark Enhancement [ Bastion of Power ]
 * Dragonmarked Ring - Ring: Charisma +6, Exceptional Wisdom +1, Incredible Potential
 * Set Bonus: 2 additional uses of Greater Dragonmark per rest

Earth Savant (Sor)

 * Thamor's Belt - Belt: Superior Erosion VIII (CL:1, 3/3), Wizardry VI [ A New Invasion ]
 * Thamor's Ring - Ring: Charisma +6, Exceptional Consitution +1, Incredible Potential
 * Set Bonus: Acid Spells gain +5% chance to Spell Critical Hit, Critical Damage Multiplier increased by 0.50

Exorcist of the Silver Flame (Clr)

 * Amara's Belt - Belt: Superior Ardor VIII (3/3), Wizardry VI [ A New Invasion ]
 * Amara's Band - Ring: Wisdom +6, Exceptional Charisma +1, Incredible Potential
 * Set Bonus: 3 additional Turn Undead attempts

Fire Savant (Sor)

 * Singed Belt - Belt: Wizardry VI, Superior Inferno VIII (CL:1, 3/3) [ Genesis Point ]
 * Kyrian's Band - Ring: Charisma +6, Exceptional Strength +1, Incredible Potential
 * Set Bonus: Fire Spells gain +5% chance to Spell Critical Hit, Critical Damage Multiplier increased by 0.50

Frenzied Berserker (Bbn)

 * Knost's Belt - Belt: Constitution +6, Greater False Life [ Genesis Point ]
 * Encrusted Ring - Ring: Strength +6, Exceptional Strength +1, Incredible Potential
 * Set Bonus: An additional rage after resting, addition 2 points of damage per swing
 * If Frenzied Berserker III enhancement: +2 Strength and Constitution (stacking)

Henshin Mystic (Mnk)

 * Oremi's Necklace - Necklace: Constitution +6, Ki On Hit +1 [ Bastion of Power ]
 * Oremi's Ring - Belt: Wisdom +6, Exceptional Constitution +1, Incredible Potential
 * Set Bonus: 1d6 Fire Damage per Attack

Hunter of the Dead (Pal)

 * Ann Velsing's Belt - Belt: Constitution +6, Undead Guard [ Bastion of Power ]
 * Ann Velsing's Band - Ring: Strength +6, Exceptional Charisma +1, Incredible Potential
 * Set Bonus: 3 extra uses of Remove Disease per rest
 * If have Hunter of the Dead III Enhancement: additional weapon damage versus Undead

Kensai (Ftr)

 * Verik's Necklace - Necklace: Constitution +6, Lesser Action Boost Enhancement [ A New Invasion ]
 * Verik's Ring - Ring: Strength +6, Exceptional Constitution +1, Incredible Potential
 * Set Bonus: +2 Exceptional Melee To-Hit, +3 Confirm Criticals
 * If have Kensai III Enhancement: +3 Exceptional Bonus To-Hit

Knight of the Chalice (Pal)

 * Lorinthor's Belt - Belt: Constitution +6, Heightened Awareness I [ Sins of Attrition ]
 * Lorinthor's Ring - Ring: Strength +6, Exceptional Charisma +1, Incredible Potential
 * Set Bonus: Spell Resistance (22)
 * If have Knight of the Chalice III Enhancement: additional damage with weapons versus Evil Outsiders

Mechanic (Rog)

 * Mechanics's Belt - Belt: Constitution +6, Proof Against Poison, Fire Resistance (10) [ A New Invasion and Genesis Point?]
 * Ring of Deftness - Ring: Dexterity +6, Exceptional Intelligence +1, Incredible Potential
 * Set Bonus: Open Locks +15, Disable Device +15, +2 Exceptional Bonus to all Dexterity based Skills

Ninja Spy (Mnk)

 * Nyoko's Necklace - Necklace: Invisibility (CL:15, 3/3), Constitution +6 [ Genesis Point ]
 * Nyoko's Band - Belt: Wisdom +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: bonus to hit and damage with sneak attacks, 20% less threat

Occult Slayer (Bbn)

 * Vorne's Belt - Belt: Constitution +6, Greater False Life [ Sins of Attrition ]
 * Gnawed Ring - Ring: Strength +6, Exceptional Constitution +1, Incredible Potential
 * Set Bonus: +2 Exceptional Bonus to Will saves, +2 Exceptional Bonus to Reflex saves, Spell Resistance (22)

Pale Master (Wiz)

 * Eerie Belt - Belt: Superior Efficacy VIII (CL;1, 2/2), Archmagi [ Genesis Point ]
 * Sanura's Band - Ring: Intelligence +6, Exceptional Intelligence +1, Incredible Potential
 * Set Bonus: 200% Damage from all Negative Energy Effects

Purple Dragon Knight (Ftr)

 * Draconic Necklace - Necklace: Greater Heroism (CL:11, 1/1), Constitution +6 [ Bastion of Power ]
 * Draconic Ring - Ring: Strength +6, Exceptional Constitution +1, Incredible Potential
 * Set Bonus: 10% additional threat, +1 Exceptional Bonus To-Hit

Radiant Servant (Clr)

 * Tokala's Belt - Belt: Superior Ardor VIII (3/3), Wizardry VI [ Genesis Point ]
 * Radiant Ring - Ring: Wisdom +6, Exceptional Charisma +1, Incredible Potential
 * Set Bonus: An additional Turn Undead attempt, Exceptional Bonus to Turn Undead Cleric Level

Ravager (Bbn)

 * Colethenis's Belt - Belt: Constitution +6, Seeker +2 [ A New Invasion ]
 * Ring of the Ravager - Ring: Strength +6, Exceptional Strength +1, Incredible Potential
 * Set Bonus: chance to inflict damage over time effect - almost every hit, around 10 points per a tick

Shintao Monk (Mnk)

 * Shintao Cord - Necklace: Constitution +6, Concentration +15 [ A New Invasion ]
 * Kyosho's Ring - Ring: Wisdom +6, Exceptional Strength +1, Incredible Potential
 * Set Bonus: +2 Exceptional Bonus to To-Hit and Damage

Spell Singer (Brd)

 * Shiona's Pendant - Necklace: Superior Potency VI, Wizardry VI [ A New Invasion ]
 * Shiona's Seal - Ring: Charisma +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: 2 additional Bard songs per rest

Stalwart Defender (Ftr)

 * Stalwart Necklace - Necklace: Constitution +6, Lesser Action Boost Enhancement [ Sins of Attrition ]
 * Cinder's Band - Ring: Strength +6, Exceptional Constitution +1, Incredible Potential
 * Set Bonus: 15% additional threat from melee attacks
 * If have Stalwart Defender III Enhancement: +2 AC Bonus (Stacks)

Tempest (Rng)

 * Kilau's Necklace - Necklace: Constitution +6, Balance +15 [ A New Invasion ]
 * Kilau's Band - Ring: Dexterity +6, Exceptional Wisdom +1, Incredible Potential
 * Set Bonus: 1d4 Additional Slash Damage
 * If have Tempest III Enhancement: +3 To-Hit Bonus

Thief Acrobat (Rog)

 * Morah's Belt - Belt: Jump (CL:15, 3/3 Charges), Constitution +6, Tumble +15 [ Bastion of Power ]
 * Morah's Band - Ring: Dexterity +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: +15 to Jump, ? % chance weapons will unbalance an opponent

Virtuoso (Brd)

 * Smedgar's Necklace - Necklace: Superior Potency VI, Wizardry VI [ Bastion of Power ]
 * Smedgar's Ring - Ring: Charisma +6, Exceptional Dexterity +1, Incredible Potential
 * Set Bonus: Additional Bard Song per rest, Extend Spell 2 Spell Points less

Warchanter (Brd)

 * Torin's Choker - Necklace: Superior Potency VI, Wizardry VI [ Sins of Attrition ]
 * Warchanter's Band - Ring: Charisma +6, Exceptional Strength +1, Incredible Potential
 * Set Bonus: Additional Bard Songs after resting, Maximize Spell costs 4 Spell Points less, Extend Spell costs 1 Spell Point less

Warpriest (Clr)

 * Morgana's Belt - Belt: Constitution +6, Attack Bonus +2, [ Bastion of Power ]
 * Morgana's Ring - Ring: Wisdom +6, Exceptional Strength +1, Incredible Potential
 * Set Bonus: 2 additional Turn Undead per rest, +2 Exceptional Melee Bonus To-Hit

Water Savant (Sor)

 * Telvi's Sash - Belt: Superior Freeze VIII (CL:1, 3/3), Wizardry VI [ Bastion of Power ]
 * Telvi's Touch - Ring: Charisma +6, Exceptional Wisdom +1, Incredible Potential
 * Set Bonus: Cold Spells gain +5% chance to Critical Hit, Critical Damage Multiplier increased by 0.50

Wild Mage (Wiz)

 * Kormor's Belt - Belt: Wild Mage Surge (CL:15, 3/3), Archmagi, Confounding Enchantment [ Sins of Attrition ]
 * Kormor's Ring - Ring: Intelligence +6, Confounding Enchantment, Incredible Potential
 * Set Bonus: (non-stacking)