Here is the full list of all 13 Heroes Trials (Asia) trophies - there are 1 silver, 11 gold and 1 platinum.
Obtained all trophies.
Acquired the three magic spells.
Cleared Plonida shrine.
Defeated Denmaku.
Defeated Taurus.
Buy the boots.
Get the bombs.
Defeated Potako.
Interacted with the Adel and Soreon statues.
Cleared the first trial.
Killed an enemy.
Found a fruit or vegetable on the island.
Talk to an NPC.