A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Could you explain the distinction between the rulings made regarding Hidden Dagger as it interacts with Rewards of Experience http://www.alderac.com/forum/viewtopic.php?f=59&t=114402 and A Champion's Strike http://www.alderac.com/forum/viewtopic.php?f=59&t=109757 ?
Why is it that in the case of Rewards of Experience it "works" and in the case of A Champion's Strike it does not?
Could you explain the distinction between the rulings made regarding Hidden Dagger as it interacts with Rewards of Experience http://www.alderac.com/forum/viewtopic.php?f=59&t=114402 and A Champion's Strike http://www.alderac.com/forum/viewtopic.php?f=59&t=109757 ?
Why is it that in the case of Rewards of Experience it "works" and in the case of A Champion's Strike it does not?
The targeting paradoxes section of the CR didn't exist at the time (so really, we had no way to guarantee that a card like No Hiding Place would ever work). Your targeting constraint at this point is that the force of the unit targeted by Rewards of Experience has to be less than yours; therefore, it's only a legal target when you use the Hidden Dagger.