Here is the full list of all 159 Aurion: Legacy of the Kori-Odan achievements.
Read the page about the Caaro Aargudan during Nama's tutorial
Spoke to Nama at Figuil
Finish 5 battles without using STM items
Erine saved Enzo from Ngarba
Held out against Ngarba without Aurion for long enough in 1st battle
Defeated the group of attackers in front of Zama Palace
Defeated those who attacked the city of Zama
Defeated the Zama looters
Was there at Enzo and Erine's wedding
Spoke to all the residents of Zama before the coronation
Used first Ultimate Legacy against Ngarba
Threw the Honour of the Kori-Odans into the air
Accessed the game menu for the first time
Made purchases at all Figuil's shops before the Nama tutorial
Forced Nama to show her Legacy first
Completed the first Bodiop climb successfully
Hit Norbert Koross at least 3 times with Shaka's Anger
Focus your Legacy after Norbert Koross
Defeat Norbert Koross
Experience first Aurionic Awakening
Use Erine's Shango Flames at least 3 times against Onia Koross
Focus your Legacy after Onia Koross
Finish the death speech of Onia Koross
Stop Nimrud's gold rush attack with Shaka's anger
Stop Nimrud's gold rush attack with unleashed fury
Focus your Legacy after Nimrud Koross
Try at least 10 different types of food
Defeat at least 25 Ajangas
Defeat at least 25 Trakas
Defeat at least 20 Traka trainers
Arrive at city of Isao
Chose the children in the Bohiri Legacy trial
Chose the legitimate wife in the Bohiri Legacy trial
Finished all the quests from the dignitary Bilandil
Listened to the explanation of Ukungu Damu and Isao's dilemmas
Experienced the second Aurionic Awakening
Activated the merchant via Bouake's Caloo
Beat the Wamba team with the blood pact in the Bouake Mine
Focus your Legacy after Wambara Koross
Focus your Water Legacy after Wambara focused his Legacy
Use the Anger Ultimate Legacy against Wambara
Get out of the Bouake Mine Prison
Use Gombe Iceberg at least 8 times with Erine during Bouake prison break
Defeat at least 25 Wamba soldiers
Defeat at least 25 Manyang ants
Save every squad of soldiers in the Isao war
Save the Isao merchants in the Isao war
Save the escapees from the house of the Bohiris
Save Dignitary Bilandil in the Isao war
Defeat Malik Bilaore to avenge Eloric Mankara
Use 3 Aurions against Malik Bilaore
Force Dramane to show his Aurionic Legacy first at Isao
Focus your Legacy in the right order against Dramane at Isao
Win the fight against Dramane at Isao
Have read the discussion about how Aurionic Links work
Saved everybody in the Isao war
Fight at least 15 battles on the Kah-Isao world map
Travel to Wasao as Morisha's love interest
Finished the discussion with Eniki about Maïsha's birth
Reached the highest position of the Elobis at Wasao
Finished the first audience with the queen of Saba
Completed Eniki's fusion tutorial
Discovered all the fusions possible with the first 2 Pillars
Swum for the first time in Shakaï Lituba
Finish the Shakaï Pillar puzzle in less than 5 attempts
Opened the forked passage in Shakaï Lituba
Listened to the Koross Origin story
Push Palak to gather the Ney-Auri without yourself beeing in Aurionic state.
Defeat Palak Koross
Finish the Ney-Karou colour puzzle in less than 5 attempts
Forced Elorin to focus the Ney-Auri before gathering your Legacy
Use the Vengeful Legacy after Elorin Karou focused his Ney-Auro
Perform the Souleyris Ultimate Legacy against Elorin Karou
Defeated Elorin Karou
Save all the Wasao soldiers during the blockade against the Karous
Defeat at least 25 soldiers from Elorin's army
Defeat at least 15 Ney Ogums
Defeat at least 25 elite soldiers from the Karou army
Defeat at least 25 heavy soldiers from the Karou army
Saved Eniki's brethren at Souleyris Lituba
Have eaten at least 20 different types of food
Accessed the intercontinental boat menu for the first time
Entered Isao after Wasao
Had the discussion with Dramane at the bar
Experienced the 3rd Aurionic Awakening
Found all the fusions possible with 3 Pillars
Defeated Daruba Sopir
Forced Daruba Sopir to focus all his Legacies
Followed Dhekina Akhey-Ron's Global Aurion discussion
Finish the Ntu Bridge battle
Forced Touop Daruba to focus all his Legacies
Spent a romantic night at Ediang Lituba
Finished the spirits' puzzle at Bouto Lima mountain
Forced Daruba Sidune to focus all his Legacies
Defeated Sidune and heard about the Bojaa plot against Zama
Heard the truth about the Bojaa plot from Dhekina herself
Defeated at least 30 Koulam rebels
Defeated at least 30 Kaya rebels
Defeated at least 30 Moyo rebels
Defeated at least 50 Mout-Mout rebels
Fought at least 15 battles on the Kah-Wangaa world map
Reached the final room in the Tomb of the Kori-Odans
Force Nabi to use all of his Aurionic Legacies
Showed the Aurion of Honour to Nabi Kori-Odan
Experienced the 4th Aurionic Awakening
Returned to visit Zama for the first time since the exile
Followed the conversation with Dhekina on Kah-Bawanga
Followed the conversation with Nama on Kah-Bawanga
Had a conversation with the Head Griot about Kah-Bawanga
Survived the first long Kah-Bawanga battle
Survived the third long Kah-Bawanga battle
Force Ngarba to use all his Legacy in front of Kajuta Roho
Defeat Ngarba and his army in front of Kajuta Roho
Force Dramane to use all his Legacy at Kajuta Roho
Use Enzo's real Ultimate Legacy against Dramane
Used all of the Aurions against Dramane at Kajuta Roho
Completed game
Defeated at least 25 Ney Crocos
Defeated at least 10 Abadjis
Defeated at least 10 Xangaloos
Defeated at least 10 Malawas
Defeated at least 8 Marabouts
Fight at least 15 battles in world map mode in Bawanga
Discovered every Aurion in the game
Unlocked all the Aurions Ultimate Legacies
Found Ice Aurion
Found Lightning Aurion
Found Dark Aurion
Found Light Aurion
Found Fire + Earth Aurion
Found Water + Earth Aurion
Found Air + Earth Aurion
Found Fire + Water Aurion
Found Fire + Air Aurion
Found Ice + Lightning Aurion
Found Lightning + Earth Aurion
Found Water + Fire + Earth Aurion
Found Air + Fire + Earth Aurion
Found Air + Earth + Water Aurion
Found Fire + Earth + Air + Water Aurion
Found Light + Dark Aurion
Finish 10 battles without using Erine
Finish 10 battles without getting hit
Eliminate any Boss without going into Aurion mode
Use 10 Ultimate Legacies in a game
Block 1000 hits times in a game
Use 120 Ultimate Legacies in a game
Use Erine's support 100 times
Eliminate 20 enemies with Erine
Try 50 Aurionic fusions
Get level 60 participation
Eliminate 2 bosses with Erine
Find 100 hidden Caloos
Showed Nabi Kori-Odan 2 Pillars
Make 50 hits during a combat
Make 150 hits during a combat
Make 250 hits during a combat
Make 350 hits during a combat
Make 450 hits during a combat