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.
A player, 10 March 2015
Kakita Ariyoshi Political Battle: Show the top card of your Fate Deck. Target an enemy Personality with Chi less than or equal to the card's Focus Value. His controller may choose to move him home. If he doesn't choose this, draw the top card and take an additional action.
So if my opponent only has lets say a 4 chi guy as the only available target, and I flip a 3, what happens?
Along with, how does this affect with the "good faith rule"? If my opponent has a 6 chi guy and I know I have no way to get the FV to be equal to or greater than 6, what happens?
Last question, what if my Ariyoshi is unopposed? May I use his ability as targeting comes after the card is revealed?
Jon Palmer (rules official), 17 March 2015
Kakita Ariyoshi Political Battle: Show the top card of your Fate Deck. Target an enemy Personality with Chi less than or equal to the card's Focus Value. His controller may choose to move him home. If he doesn't choose this, draw the top card and take an additional action.
So if my opponent only has lets say a 4 chi guy as the only available target, and I flip a 3, what happens?
Along with, how does this affect with the "good faith rule"? If my opponent has a 6 chi guy and I know I have no way to get the FV to be equal to or greater than 6, what happens?
Last question, what if my Ariyoshi is unopposed? May I use his ability as targeting comes after the card is revealed?
If there are no legal targets after the flip, the targeting fails, and the rest of the effect ends.
There's no requirement that you "know" the facedown contents of your deck, so if you just want to do the flip even when the metagame knows you can't hit anything (such as the 6C Personality), you're still able to use it.