Thats right a Bank,  you can deposit Money or Valuables in the bank for safe keeping.  And your money will grow at 5% per month.  Or do you need a loan you can take out a loan also at 5% with loans you will have to leave something of Value at the bank as Collateral so nobody runs off with my money or my clients money that they trusted me to invest.  So here it is you can deposit Cash at 5% EXP at 5% Gold at 5% and iron at 2.5%.

Still working on rates for Diamonds and Emeralds but will update.  Rates will change with the changing Economical landscape so look up The First Server Bank and Trust  in Groups for updates.