Here's a list of titles in the game for both factions:

Elyos

Poeta's Protector
You completed all the campaign quests in Poeta.
Maximum HP +20 / Physical Def +2

Verteron's Warrior
You completed all the campaign quests in Verteron.
Maximum HP +30 / Magic Boosting Power +6

Bottled Lightning
You defeated Lightningfoot Tuka, the bane of Tolbas Village.
Speed +3%

Tree-Hugger
You helped an Elim who was in trouble.
Accuracy +4

Krall Hunter
You defeated many Krall.
Physical Critical Hit +2 / Flight Time +1

Straw for Brains
You helped Scarecrow Nola who was in trouble.
Parry +5

Animal Lover
You avenged Tutty on behalf of Pernos.
Maximum MP +20

Fluent in Krall
You can speak Krallic fluently.
Magic Boosting Power +5

Patient
You completed an errand that was quite annoying and took a long time.
Evasion +3

Mabangtah's Envoy
You delivered Mabangtah's Letter to the Brigade General of Eltnen.
Physical Def +4 / Block +8

Demolitions Expert
You used explosives to destroy the Artifact at the Lepharist Construction Base.
Magic Boosting Power +10 / Physical Att +1

Eltnen's Hero
You completed all the campaign quests in Eltnen.
Physical Def +5 / Magical Res +3

Klaw Hunter
You removed the Klaw Spawner.
Magical Accuracy +2 / Magic Boosting Power +9

Aerialist
You passed the high-level flight skill test
Flight Speed +1% / Flight Time +2

Kobold Chef
You can cook Kobold-style food.
Maximum HP +57 / Maximum MP +57

Respects the Fallen
You laid flowers on the grave of Isson, a troubled Lepharist you killed yourself.
Physical Critical Hit +3 / Physical Def +-4

Eulogist
You went to Asmodae and held a memorial for Deltras who died unjustly.
Physical Critical Hit +3 / Physical Att +1 / Parry +8

Love Cynic
You took revenge on Kromede on behalf of Hagne.
Maximum HP +36 / Physical Def +4 / Block +8

Anti-Counterfeiter
You destroyed the fake stigma storage.
Accuracy +8 / Evasion +3 / Atk Speed +2%

Savior of Eiron Forest
You defeated the Three Kures Brothers who destroy thickets and trees in the Eiron Desert.
Maximum HP +36 / Maximum MP +36 / Speed +5%

Honorary Meihuarirerk Union Member
You solved the problem of the Meihuarirerk Excavation Union.
Maximum MP +36 / Magical Accuracy +2 / Magical Res +4

Lonely Bounty Hunter
You arrested the wanted Kelaino.
Magic Boosting Power +8 / Flight Speed +2% / Flight Time +2

Recognized by Paserta
You were blessed by the Divine Tree Paserta.
Speed +3% / Physical Critical Hit +3 / Magic Boosting Power +8

Chief Investigator
You revealed the conspiracy of the Lepharist Secret Research Center.
Physical Att +1 / Speed +3% / Magic Boosting Power +8

Defeater of the Indratu Legion
You defeated Brigade General Indratu.
Physical Critical Hit +4 / Magic Boosting Power +11 / Flight Time +2

Belbua's Benefactor
You rescued Belbua from Lepharist Revolutionaries.
Block +7

Poor Camouflage Master
You failed to persuade Rasberg because of your poor disguise.
Maximum MP +32 / Magical Res +2

Experienced Fisher
You defeated the Seiren living in the deep sea.
Accuracy +7

Excellent Spy
You successfully infiltrated Asmodae.
Maximum MP +42

Fluent in Balaur
You can speak the Balaur language fluently.
Magical Accuracy +3 / Maximum MP +46 / Magical Res +3

Tough
You defeated a novice Asmodian warrior in the Abyss.
Physical Critical Hit +4 / Magic Boosting Power +11 / Fire Defense +4

Battle-Hardened
You defeated an experienced Asmodian warrior in the Abyss.
Block +10

Invincible
You defeated a veteran Asmodian warrior in the Abyss.
Evasion +4

Heroic
You defeated Asmodians in the Abyss and enhanced the reputation of the Elyos.
Physical Critical Hit +4 / Physical Att +1 / Atk Speed +1%

Expert Weaponsmith
You reached the highest level in Weaponsmithing.
Magic Boosting Power +11 / Magical Accuracy +3 / Fire Defense +4

Expert Armorsmith
You reached the highest level in Armorsmithing.
Magic Boosting Power +8

Handicrafting Expert
You reached the highest level in Handicrafting.
Flight Time +2

Cooking Expert
You reached the highest level in Cooking.
Physical Att +1 / Magic Boosting Power +8

Alchemy Expert
You reached the highest level in Alchemy.
Maximum HP +44 / Atk Speed +2% / Wind Defense +4

Sewing Expert
You reached the highest level in Sewing.
Maximum HP +52 / Flight Time +3 / Flight Speed +3% / Speed +6%

Honorary Black Cloud
You consolidated the place of the Black Cloud Traders in Ereshuranta.
Speed +5%

Krall Slaughterer
You annihilated Krall in Eltnen.
Maximum HP +44 / Maximum MP +44 / Flight Time +2

Gatekeeper Hunter
You defeated the gatekeeper of the Ereshuranta Upper Layer Fortress.
Flight Speed +3%

Obstinate Herdsman
You stopped the massive conspiracy of Lepharist Revolutionaries
Maximum HP +48 / Maximum MP +48

Gullible
You exchanged a valuable for a lemon.
Flight Speed +2% / Evasion +4 / Water Defense +4

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Asmodian

Bandit Hero
You raised the reputation of the Ulgorn Bandits.
Maximum HP +20 / Physical Def +2

Treasure Hunter
You found a hidden treasure on Ishalgen island.
Accuracy +4

Mosbear Slayer
You annihilated Mosbears in Altgard.
Evasion +2

Fluent in Mau
You can speak Mau fluently.
Magic Boosting Power +5

Kind
You helped Gerger to fulfill his lifetime dream.
Maximum MP +20 / Flight Time +1

Legendary Hunter
You captured Silver Claw Komu, head of the Mosbears.
Parry +6

Protector of Altgard
You saved Altgard from the threat of the Balaur.
Physical Critical Hit +2 / Magic Boosting Power +6

Taiga Slayer
You are qualified to enter the Aetheric Field of Karhel.
Evasion +3 / Magical Res +2

Courageous Destructor
You destroyed the cursed necklace.
Maximum MP +34 / Magical Critical Hit +3

Protector of Morheim
You saved Morheim from the threat of the Balaur.
Physical Def +5 / Magical Res +3

Shugo Chef
You can cook Shugo-style food.
Evasion +3

Energized after eating Millennium Ginseng
You dug up a huge Millennium-old Fresh Ginseng, the Miraculous Plant of Munmuns.
Maximum HP +40 / Water Defense +4

Honorary Kidorun
You became an honorary member of Kidorun Grave Robber Band for helping Paepaerunerk and Sararinyerk.
Parry +8 / Evasion +3

Champion of the Elderly
You helped an old lady to fulfill her last wish.
Maximum MP +42

Friend of Kong and Pat
You took revenge on Mosbears on behalf of the Bubu tribe.
Block +9

Silver Mane Benefactor
You defeated the Mist Mane Mau on behalf of the Silver Mane Mau.
Physical Att +1 / Magic Boosting Power +9

Postal
You went to Elysea and gathered Elim Essence for the Elim Nabaru.
Speed +4%

Slayer of Mabangtah
You threw Elysea into chaos by defeating Mabangtah, a pro-Elyos Krall.
Physical Critical Hit +4 / Magical Critical Hit +4 / Flight Time +2

Tenacious
You went to Elysea and brought ingredients for the Kselopen sausage that Dukar was craving.
Concentration +6 / Physical Def +4 / Earth Defense +3

Fast, Exact, and Reliable
You found Kitty, a young Taiga Asgeirr grows.
Magic Boosting Power +6

Unyielding Pioneer
You expelled the Undead from the Havenjark Farm.
Magical Accuracy +2

Protector of Brusthonin
You arrested all Elyos who infiltrated into Brusthonin.
Physical Critical Hit +3 / Accuracy +7

Cheated by Sleipnir
Sleipnir took away the key to the Golden Trumpet Temple you had obtained at a great cost.
Accuracy +10 / Magical Accuracy +3

Beluslan's Hero
You saved Beluslan from the threat of the Balaur.
Physical Critical Hit +4 / Magic Boosting Power +11 / Fire Defense +4

Hunter of the Snowfield
You annihilated Kirruses and Karnifs around Beluslan.
Accuracy +9

Savior of Besfer Villagers
You protected Besfer villagers from Beritra's Curse.
Magical Accuracy +2

Sweeper of Musfel Volcano
You eliminated all dangerous creatures from the Musfel Volcano.
Fire Defense +3

Ancient Book Collector
You took away the Hymn Book for Empyrean Lord Israpel from Lepharist Revolutionaries.
Physical Att +1 / Magical Att +1

All the Way to Elysea for Nothing
You failed to bring back Rasberg to Asmodae.
Maximum HP +48 / Physical Critical Hit +4 / Physical Def +5

Fluent in Balaur
You can speak the Balaur language fluently.
Magic Boosting Power +8

Tough
You defeated a novice Elyos warrior in the Abyss.
Flight Time +2

Battle-Hardened
You defeated an experienced Elyos warrior in the Abyss.
Physical Att +1 / Magic Boosting Power +8

Invincible
You defeated a veteran Elyos warrior in the Abyss.
Maximum HP +44 / Atk Speed +2% / Wind Defense +4

Heroic
You defeated Elyos in the Abyss and enhanced the reputation of the Asmodians.
Maximum HP +52 / Flight Time +3 / Flight Speed +3% / Speed +6%

Expert Weaponsmith
You reached the highest level in Weaponsmithing.
Physical Critical Hit +3 / Physical Att +1 / Parry +8

Expert Armorsmith
You reached the highest level in Armorsmithing.
Maximum HP +36 / Physical Def +4 / Block +8

Handicrafting Expert
You reached the highest level in Handicrafting.
Accuracy +8 / Evasion +3 / Atk Speed +2%

Cooking Expert
You reached the highest level in Cooking.
Maximum HP +36 / Maximum MP +36 / Speed +5%

Alchemy Expert
You reached the highest level in Alchemy.
Maximum MP +36 / Magical Accuracy +2 / Magical Res +3

Sewing Expert
You reached the highest level in Sewing.
Magic Boosting Power +8 / Flight Speed +2% / Flight Time +2

Wheeler-Dealer
You completed trade deals with all fortresses in Ereshuranta for the Black Cloud Traders.
Speed +5%

Poking into Everything
You wound up all Daskair's affairs.
Maximum MP +44 / Parry +11

Gatekeeper Stabber
You defeated the gatekeeper of the Ereshuranta Upper Layer Fortress.
Flight Speed +3%

True Friend of Silver Mane
I defeated the enemy of the Silver Mane Tribe.
Maximum HP +44 / Maximum MP +44 / Flight Time +2

Born Merchant
You exchanged a lemon for a valuable.
Flight Speed +2% / Evasion +4 / Water Defense +4

Pioneer of Aion
It is a title to honor an adventurer who pioneers the world of Aion.
Physical Critical Hit +3 / Physical Att +1 / Parry +8

As You Wish
It is a title to honor an adventurer who is competent enough to realize his big dream.
Maximum HP +36 / Physical Def +4 / Block +8

Putting on a Show
It is a title to honor an adventurer who enjoys live and acts cheerfully.
Accuracy +8 / Evasion +3 / Atk Speed +2%