Here is the full list of all 44 Fallen Legion: Flames of Rebellion trophies - there are 30 bronze, 10 silver, 3 gold and 1 platinum.
Congratulations! You obtained all of the trophies.
Use the Psyche Devourer spell.
Face the Order of the Bleeding Axe.
Complete One Life mode.
Master many deathblows.
Use three of the same Exemplar in battle.
Join a raid with Constantine.
Use two of the same Exemplar in battle.
Defeat the Ouroboros Cypress.
Discover the secret in Styricaem.
Unlock Chaos Zulfiqar.
Unlock Chaos Apollon.
Unlock Chaos Winchester.
Unlock Chaos Mjolnir.
Unlock Chaos Dardanelles.
Unlock the epilogue.
Unlock Order Mjolnir.
Unlock Chaos Longinus.
Unlock Order Apollon.
Unlock Order Zulfiqar.
Unlock Order Longinus.
Trigger break mode while fighting the final boss.
Unlock Order Winchester.
Trigger break mode while fighting General Aurelius.
Complete the third act.
Trigger break mode while fighting the Crystal Golem.
Complete the second act.
Complete a 100-chain combo.
Unlock Order Dardanelles.
Earn a S-rank in a stage.
Use the White Staccato spell.
Trigger break mode while fighting Micena.
Choose March Congress cards 25 times.
Choose Council of Princes cards 25 times.
Choose Prime Legion cards 25 times.
Find a celestial gem or an arcane gem.
Trigger break mode while fighting the Vandee Werewolf.
Trigger break mode while fighting the Manticore.
Rescue Princess Agnes in her time of need.
Complete a 50-chain combo.
Complete the first act.
Inflict over 9,000 damage without breaking the chain meter.
Deflect an enemy attack with a perfect block.
Perform a link attack.