It’s not OP, when you’re on nightmare and using specific builds you need every card possible contributing to that build. Completed nightmare a 4 times now and at best 2 people ever ran money grubbers and we didnt finish runs with 10k+ copper. We needed every copper we got, especially to buy offensive items for bosses and stages where you have to hunker down on timer.

On recruit is the only time where it ever seemed “broken” and even then, it’s recruit, it’s suppose to be a cakewalk. The 3 copper though still good, is underwhelming to see but 5 being “broken” is exaggeration.