The Alliance Alive HD Remastered (EP)

The trophy is not cumulative!
You must have this amount in your wallet at once

It is best to complete this trophy in the Crystal Cave (Crystal Realm, northeastern cave on the island). The cave is small, and it's easy to make a streak of 5 battles. Also buy the following talents for a character you are not using: Bargain Sale and Eagle Eye (in the Move section). After farming, go to Hakurei Castle, on the 4th floor of the western wing there is an old man to whom most of the loot can be sold for twice the price (what can be sold to him is determined randomly). Closer to completing the trophy, you can save, sell the rest of the farmed items and get the trophy, reboot and finish off the remaining trophies. Best combined with getting the Talent Tyrant trophy.