Hey -

My question is about using Fishmonger's Square and Corpse Lake as responses to a discard event:

Corpse Lake: Response - after a triggered effect discards 1 or more characters from the top of an opponent's deck, claim 1 power for your House.

Fishmonger's Square: Response - After an attachment or event card is discarded from a player's deck, kneel Fishmonger's Square to draw 2 cards.

Am I correct in believing these 2 will always synergize because the response opportunity is triggered by the discarding of an individual card? That is, if I use a drowned disciple for claim soak to force all my opponents to discard 3 cards:

Player A first discards a Character from the top of their deck, I trigger Corpse Lake to claim a power.

Player A then discards an Attachment, I trigger Fishmonger's square to draw 2 cards.

Because of Corpse Lake's wording (one or more characters), I could not trigger it against the same player should their 3rd discard be a character. But, what about the next player? Would I be able to use Corpse Lake on them, also, and in most Melee situations grab 3 power from Corpse Lake everytime I can mill with a Disciple?

I guess I am a little unclear on how discarding works - do players discard 1 card at a time, in sequence (Player A discard 1,2,3->Player B discard 1,2,3), allowing for responses against each individually discarded card? Or, when you discard "3 cards off the top of your deck" is that a lump of 3 cards that can only be interacted with as a single entity (letting me use EITHER Corpse Lake or Fishmonger's Square, on the basis of 1 response per trigger)?

Thanks

The "one response per trigger" rule isn't very aptly named, because what it really says is "a given response can be used only once for a given opportunity". So it means that if a single effect discards multiple characters from your opponents' decks, you can use Corpse Lake's response only once. But if the same effect also discards an event or attachment from an opponent's deck, you can use Fishmonger's Square as well.

The thing to recognize is that Corpse Lake responds to the discard effect while Fishmonger's Square responds to the individual card being discarded.

Cards are considered to be discarded from the deck separately, so a "discard 3 cards" effect created 3 (times the number of players) separate "after a card is discarded from a player's deck" response opportunities. But it creates only 1 "after an effect discards…" response opportunity.