-( Story related, cannot be missed )-
Valkyrie, Chapter 3: Lord Brigan
You will obtain this trophy after dealing with this brute. You won't be able to do any damage to him at first until you break off all four of his impenetrable shields. Keep dealing damage while avoiding his telegraphed attacks, jumping up and over him if you need to. Once all four fall off, he will be able to take damage, though this will not leave you with a large opening. After some time has passed or damage has been dealt, he will summon Valkyries to his aid. They will gather the shields to reattach. If you have any powerful potions, you can drop them to either stall, kill, or at least slow them down.