User blog comment:KusaNin/PreGen Project: Team Training Arc/@comment-24351195-20160220184240/@comment-25156300-20160220201431

Clues could be a possibility, depending on how the senseis set it up.

Not sure about the artifacts. Any ideas on that? Scrolls seem too simple. Maybe something that can also teach each group some kind of lesson, instead of just being an object to grab?... if that could work.