I guess I should have been paying more attention...

[Toki has only been to talk to the Attendants twice, and the second time he just got drunk and sang with the cats and Minato. He was only peripherally aware of the compendium, and not present for the earlier meetings.]

One thing I don't understand. If he has this much power, why did he need us to begin with? He could take anyone from any world... why us?