I'd like to know if I understand correctly the text of Yoritomo Matsoru...
Raid Battle: Bow Matsoru: If Matsoru is attacking the current Province during a Raid battle, target one of the Defender's Provinces. For the rest of the game, cards in that Province may not be discarded or enter play, and the Defender may pay 3 Gold as a Limited action to end this effect at the end of that turn.
So, a card in that province cannot enter play, or be discarded. Fine.
* If a Region is flipped, it cannot enter play or be discarded, so it will stay there and attach when the lock is removed. Correct?
* If a "normal" Event is flipped, since most Events never enter play, the Event will resolve, and instead of being discarded as normal Events do, it will remain in the Province - to be discarded without effect when the province is unlocked and the Events phase comes again. Correct?
* Here is where I'm not so sure. Some Events (Shattered Focus, Death of Ryoshun) explicitly enter play as part of their resolution. My understanding is that Matsoru will not prevent such Events from "trying" to resolve, but the entering play will be negated - thus the net effect is typically that the Event resolves without effect, but still counts as having resolved (and stays in the Province). Correct?
* A few Events (Boundless Sight, A New Wall) don't enver play, but as part of their resolution, ask to be replaced by a specific card. My understanding is that the Event resolves, but since if refuses to be discarded, the card cannot be put into the Province instead. Correct? And if so, what happens to the card - does it go back to the deck, or is it discarded (since it never entered the Province, this can happen at least) ?