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