If you brought multiple characters into REIM, you could bring two to the boss room. Summon and have the summoning character leave the room. The remaining character would fight them and pick up 60-80K worth of gear. Because the summoning character left room (without attacking), they did not get credit for killing the bosses... meaning they could resummon in 10 minutes (a timer Simu implemented... no idea why/when, was "away" when REIM was made). Do that over and over for two hours with as many characters as you have (that can survive). If you were perfect, it resulted in about 6M silver. Any deaths (which were common) or timing issues. and you were down to 4.5-5.2M. Keep in mind, it cost 8 REIM entries to do this (which if translated from $$ to silver is ~2M).