How to Get Rich
Max out base affixes using Netherrealm Resonance, take three Drop Pactspirits, and apply the appropriate filter.
You can use Netherrealm Resonances to add affixes to a stage, greatly increasing the stage's base drop quantity.
When your combat capability is high, you can bring along 3 Drop Pactspirits to greatly increase the drop quantity.
Use filters to hide low-value items to significantly increase your looting efficiency.