Buff Knight Advanced

This trophy is accumulative and is to be obtained as you play through the game. More than likely this will be one of the last trophies you get and you will need to grind this one out by just playing levels and picking up gold. The higher levels normally have the highest amounts of gold so I'd focus on replaying those ones. Also make sure to equip the Candlestick of Luck and Eye Of Treasure artifacts so that you get a boost in the gold collection to help out. Once you finally get enough gold, the trophy will pop.