This Trophy will be unlocked upon completion of quest "012 - Improving on Perfection 5".
The quest will become available upon completion of the story quests earning the following trophy:
The quest requires the user to obtain two (2) Finessence which are obtained from all types of Trolls. Trolls and Boss Trolls are the better choice as their common drops are Finessence while it's a rare drop from Stout Trolls.
Trolls can easily be found in Caliburgh Meadow - Hero and Caliburgh - Captain.
Boss Trolls can be found in Arba Town - Captain and Pinnacle of Light - Hero.
For the sake of completion, Stout Trolls can be found in The Fault - Hero.