"No, of course not," Solomon said, "I just told you you weren't allowed to fight him to curtail your chance of having fun. Yes, it's here. It's bound into the Item. I don't know why it hasn't made itself explicitly known; maybe it just doesn't see the point of trying to contest Mevolent's older brother on its own and is waiting for us to do it instead. Or maybe it's just more focussed on Bakura's world. Or maybe the transition has put it into hibernation. Whatever the case, Bakura has made it explicit that using a certain degree of power from his Item is sure to draw its attention, and while it likes making deals, those deals usually come at a very high cost."

Which was why Solomon had every intention of avoiding its use while they tried to summon back the selves of Bakura's kin. The Ring would probably have been able to expedite the process significantly--but Solomon didn't mean to achieve success only to have the ghosts, himself or Bakura still bound to that darkness. That would defeat the point of it.

No, this had to be done without that resource. Bakura had sacrificed too much to it already.