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, 8 March 2010
How do cards flip after a border Keep? Are they flipped right to left or at the same time? My question is relevant to flipping a celestial. If the cards are flipped one at a time, then a celestial would enter play, and I would assume the card replacing it would be flipped face up as well, since you are still resolving the Border Keeps action.
If the cards are revealed simultaneously, then I could see how the celestial enters play and the replacement card is face down. But if this is so, then will flipping 2 celestials result in one of the 3 situations? (1) Both enter play (2) Both are discarded (3) 1 enters play, 1 is discarded
A player, 8 March 2010
How do cards flip after a border Keep?
See How does Border Keep work? (emphasis added): "The Provinces are also all refilled simultaneously, because multiple effects created by a single piece of text are simultaneous."
If the cards are flipped one at a time, then a celestial would enter play, and I would assume the card replacing it would be flipped face up as well, since you are still resolving the Border Keeps action.
Your assumption is wrong; see CE: Celestial Refill/Border Keep: "Border Keep's effect that refills the provinces face-up only applies to the refilling from its own effect, not to any refilling that happens in the chosen provinces while the action resolves."
If the cards are revealed simultaneously, then I could see how the celestial enters play and the replacement card is face down. But if this is so, then will flipping 2 celestials result in one of the 3 situations?
See CE: Celestial Refill/Border Keep again (emphasis mine): "if you use Border Keep's action to refill your provinces, all of them are refilled at the same time by a face-up card. If any of them are Celestial cards, they enter play simultaneously and their provinces are refilled normally (face-down)."
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