Here is the full list of all 51 Arcana Heart 3 trophies - there are 42 bronze, 5 silver, 3 gold and 1 platinum.
Conquered the beast that is Arcana Heart 3
Raised the RP Level of all characters to 3.
Raised the RP Level of one character to 10.
Fought and defeated all the Arcana in Network Mode.
Unlocked all of the link animations in Gallery Mode.
Unlocked all of the illustrations in Gallery Mode.
Watched all of the endings in Story Mode.
Fought and defeated all the characters in Network Mode.
Used moves with the word "Sacred" in them more than 100 times as Fiona.
Used Baldur to defeat Ragnarok.
Cleared Story Mode using Heart and the Arcana of Love.
Ran the longest possible line off of a successful [Wall Step].
Got all clean hits with Edinorog during [Final Razdelenie (EF)].
Used the ultimate version of [Shunkoku].
Executed a 100+ hit combo without using the help of an Arcana.
Got a clean hit with [Sacred Slayer (EF)].
Successfully input the follow-up attack to [Fuuju - Narukami (EF)].
Completely drained the Spiritual Gauge more than 3 times in a single match.
Completed a 666-hit combo.
Watched the bad ending in Story Mode.
Played your first Ranked Match.
Defeated Parace L'Sia in Score Attack Mode.
Got all of Elsa's weapons to show up during a single match.
Performed [Cinderella!] when the numbers on the clock are lined up.
Used all of Dorothy's card hands during a match.
Completed [Geschick the Blood Linchpin] over 4 times while the doll is inactive.
Used the moves [Kagesuki], [Kodama], [Seizan], and [Sazarashi] in one round.
Won using Arcana Blaze.
Got a counter-hit using [Restriction Unleashed - War Chain Wolkenkratzer (EF)].
Saw all versions of [I'll Draw...] in a single match.
Caused over 20 stuffed animals to appear during [Kawarimi no Jutsu].
Landed [Hama No Shishiku] and [Taima No Zuikaku] during a combo.
Completed all the follow-ups to [Ancient Talisman] in a single match.
Landed the ultimate version of [Ending Sadness].
Won using Critical Heart.
Absorbed life using [Il Rapimento].
As Mei-Fang, defeated an opponent without taking any damage.
Used [The Hero, Minigawa, Launch!] more than three times during a single match.
While the Water Arcana [Regnum] is active, land a [Last Armageddon Drop].
Won using an Extended Critical Heart.
Used more than five 360 motion special moves and won with a 360 motion special move.
Complete the move [Garbh Dagda (EF)] without pressing any unnecessary buttons.
Finished Story Mode on the highest difficulty.
Finished Story Mode.
Used more than 1000 Ether Stocks.
Played your first Player Match.
Used all of the Arcana.
Won while the Extend Force was disabled.
Used all of the characters.
Got attacked immediately after the [Come and Get Me!] teleport.
Practiced for 15 minutes straight in Training Mode.