Here is the full list of all 32 Mercenaries Rebirth: Call of the Wild Lynx trophies - there are 16 bronze, 9 silver, 6 gold and 1 platinum.
Completed all trophies
Cleared Chapter 1
Cleared Chapter 3
Cleared Chapter 6
Cleared Chapter 9
Cleared Chapter 12
Cleared Chapter 15
Cleared Chapter 18 of "Siege route"
Cleared Chapter 21 of "Siege route"
Cleared last chapter of "Siege route"
Cleared Chapter 18 of "Duel route"
Cleared Chapter 21 of "Duel route"
Cleared last chapter of "Duel route"
Cleared Chapter 18 of "Third route"
Cleared Chapter 21 of "Third route"
Cleared last chapter of "Third route"
Traded a puzzle piece for rare equipment
Used Synthesis to create a magic item
Used 20,000G on synthesis to create a magic item
Cleared EX stage 01
Cleared EX stage 02
Cleared EX stage 03
Cleared EX stage 04
Cleared Dungeon of Trials
Used a Rebirth Exceed skill
Dressed up party member to look like a mascot
Party member reached Lv.99
Party member changed to Intermediate Class
Party member changed to Advanced Class
Party member changed to Special Class
Cleared the game in Hard mode
Cleared the game in Maniac mode