Here is the full list of all 24 Skyborn achievements.
Defeat Qua'Lon.
Defeat Qua'Lon on Hard difficulty.
Defeat Dhacian! Big surprise huh?
Defeat Dhacian on Hard difficulty.
Defeat Shynn.
Find St. Theresa's Battle Armor in the big chest in the Celestial Nexus.
Collect all Spades cards, and clear the Venom Depths.
Unlock the final class change.
Complete the arena.
Defeat the Titan.
Unlocked the second class change.
Complete the Experimental Potion for Atlas.
Defeat Saehral.
Finish Alda's Trial of Arms in record time!
Return Laryn's wedding band.
Unlocked the first class change.
Find the Circuit Breaker in the big chest in the Coal Mines.
Find the Stylish Hat in the big chest in the Coal Mines.
Find the Sapphire Bracers in the big chest in Granminster Prison.
Defeat Fafnir.
Defeat the Sand Dozer.
Defeat the Lamia.
Successfully defeat the sky patrol.
Celebrate achievements being added to the game! Thanks for waiting!