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, 30 April 2012
So, this weekend in a T16 match at a Kotei this question came up and I want to be certain Kalani's Landing works as I believe it does. Here is the situation:
I have Kalani's Landing in play and unbowed. I am in a battle with Yoritomo Singh opposed only by personalities who have a gold cost of 8. I announce Yoritomo Singh's battle action and react with Kalani's Landing to target an opposing personality. My opponent believes the Good Faith Rule would prevent me from announcing Yoritomo Singh because I only have seven gold available (three from Yoritomo Singh's reaction and four from Kalani's Landing). I believe that the reaction on Kalani's landing would allow me to announce the action because I would then have the gold available to pay for the action. Play stopped, the question was asked, and no one was sure how to rule on it. In the end the ruling was not needed because I pointed out to my opponent that I had a Luxurious Silks in play which had it's react available, but I want to make certain that in the future this does not come up again and that I correctly understand the interaction of Kalani's Landing and the Good Faith Rule.
Good Faith Rule: When an action is announced, the player must be able to target all required targets, meet all conditions of the action, and pay all mandatory costs, to the best of his or her knowledge.
Reaction: After an action is announced, target a card (in play): Give it -2 Gold Cost.
Reaction: When paying an action's Gold cost: Produce 3 Gold. Battle: Target an enemy card without attachments and pay Gold equal to its Gold Cost: Destroy it.
Ben Higgins (rules official), 30 April 2012
The Good Faith Rule does take into account Kalani's Landing's Reaction (assuming it has not been used yet this turn), as it is an effect that in the case described, would reduce a cost.
From Glossary: Good Faith Rule:
Aspects of the game state are taken into account in determining legality under the Good Faith Rule, such as effects that reduce costs, prevent costs from being paid, or relax requirements.
A player, 2 May 2012
Hi,
Following that thread : viewtopic.php?f=59&t=97699#p1289948
I do not understand why the good faith rules can be used here? Shouldn't the opponent have to check how many card Yoritomo Singh's controler has in hand? I mean, he could have up to 3 copies of "One koku", couldn't he?
Card text : One Koku - Strategy Reaction: When paying a Gold cost: Produce one Gold.
Regards, Rémi.
Ben Higgins (rules official), 2 May 2012
Hi,
Following that thread : viewtopic.php?f=59&t=97699#p1289948
I do not understand why the good faith rules can be used here? Shouldn't the opponent have to check how many card Yoritomo Singh's controler has in hand? I mean, he could have up to 3 copies of "One koku", couldn't he?
Card text : One Koku - Strategy Reaction: When paying a Gold cost: Produce one Gold.
Regards, Rémi.
The Good Faith Rule states: When an action is announced, the player must be able to target all required targets, meet all conditions of the action, and pay all mandatory costs, to the best of his or her knowledge.
The bolded emphasis is mine.
Knowing you have up to three One Koku in your hand when announcing Singh's ability falls under the best of your knowledge, since the contents of your hand is known to you, and the number of cards in your hand is game knowledge all players have access to.