Cersei's Response = After you win in I challenge in which Cersei participated, choose and kneel up to X non-Army characters. X is the number of cards you control in Shadows.

Queen's Guard's passive = After you trigger an effect that kneels an opponent's character, choose and kneel 1 character controlled by a different opponent.

Hypothetical situation: I am playing a 3 person melee and have both of these cards in play as well as two cards in Shadows. I win an I challenge with Cersei, and trigger her Response to choose to kneel one character controlled by each opponent. Does Queen's Guard's passive trigger twice here, allowing me to not only double the amount of knelling, but also get around Cersei's limitation of non-Army characters? I know there is only one trigger, but with two opponents it seems as there are two opportunites for the passive to resolve.

No, because you still only triggered Cersei's ability one time.

Queen's Guard is activated by triggering the ability, not by the character going from standing to kneeling. So there is only one "passive trigger" in the scenario you describe (activating Cersei's Response), not 2 (kneeling 2 different characters).

But if you were to marshall an Enemy Informer while controlling a Castellan of the Rock and a Queen's Guard, the Queen's Guard's passive would initiate for each of the kneel responses (I know someone who plays this… very annoying) and it would also initiate for a Flogged and Chained, too.

Khudzlin said:

I ran that deck in GenCon Melee. Lesson: Don't bring the most annoying deck to Melee, everyone takes you out first.

Yeah, I've found that the two worst things to do in Melee are have cascading kneeling or milling effects. These will have the other three opponents on your @ss in no time. So if you gonna do it, make sure you can kneel EVERYONE!

That was my deck at Days for melee, except I forgot the 3 Flogged and Chained at home so I had to sleeve up three cards right before the tourney lol

I'm always surprised to see kneel decks in melee; I feel like theres no way you can expect to control the board with them so unless you have a rush deck that uses the kneel to get a few easy challenges you're stuck with a "blackmail" ability. Course I did take a "super burn" deck to melee @ GenCon so I dont have much room to talk, but at least the burn can protect me a bit better than kneel.

Changes to the restricted list and queens guard have given kneel decks a big boost imo. if its big enough to make it viable is something else.