Idle Champions of the Forgotten Realms

I was able to unlock this about 3 weeks after starting the game with a mix between some fairly active playing and idle time of only checking in once or twice a day. Basically, you will want to go as high an area as you can before it slows down. When you reset, this will increase your favor for the deity of the current campaign you are in.

This favor relates to gold find which will allow you accumulate more gold by the time you reach the same level the next time, thus pushing a little farther. Eventually you will have to find the balance between keeping favor for gold find and putting it into blessings which increase other stats to push to higher levels.

There is no point to attempt to grind out for this amount of gold at a lower level as it would take forever. Your best bet is just keep pushing to higher levels where the gold will accumulate quickly.