"The khajbit is a contract with the duelist," Bakura stated matter of factly. "That's why it tests those who enter-- think of it as collateral. You don't lend someone ten times the amount of money than what they can pay back. Power works the same way."

He blew a few strands of white hair out of his eyes; the hot sun had him almost dry already. "I don't know that there's any single answer for that."