Frey Hospitality - Intrigue Gambit. After a player loses an challenge, that player must choose and kill a character under his or her control.

While this Plot is in play, I attack my opponent with Qyburn (who has Deadly). My opponent opposes with a House Messenger, losing the challenge. What happens first? Deadly or the Plot's effect?

They are conflicting passives, so the First Player decides.

Thanks again Kevin! That's how we ruled it!

Wouldn't Frey Hospitality resolve first? Here's my reasoning: The Deadly mechanics specify that it takes effect after the Challenge resolves , while Frey Hospitality takes effect as soon as the challenge is lost/won.

KristoffStark said:

I understand what you are saying, but this is still resolved in the Passive abilities step where it has a conflict with Deadly. There is no timing window available to enforce this before the Passive step that I can see.

Look at it this way: you don't have to trigger your Responses in the order that the triggers were created, right? You can Respond to a character being killed for military claim before Responding to losing the challenge, for example. The same is true for passive effects. The order in which the "triggers" are created does not dictate the order of passives (in the single Step 4) any more than it dictates the order of Responses (in the single Step 5).

All applicable passives to everything that happened before Step 4 are considered to happen simultaneously in Step 4. When they cannot happen simultaneously because they conflict with each other, the First Player chooses the order.

Fair enough.

Just to clarify, if it were a military challenge I had lost, could I choose my claim target to also be the character killed by the Frey Hospitality effect? Could I choose the claim target to be killed by both Frey Hospitality AND Deadly or am I forced to pick two different characters if possible?

Once a card is moribund, it cannot become moribund again. So no, you couldn't choose the character to die for Frey Hospitality after choosing it to die for Deadly.

However, if you oppose with a single character and Deadly is resolved after Frey Hospitality, you could choose the defender to die for Frey Hospitality, leaving yourself no other choice for Deadly (making it like defending a MIL challenge with a single defender and killing that character for claim before Deadly comes around). I assume the order between Frey Hospitality and Deadly is chosen by the first player, since both effects are passives with the same trigger that potentially conflict.

But again, the first player would decide which of those passives (deadly or the frey claim effect) happened first. So in the previous House Messenger example, if your opponent was first player, they could say that Deadly triggers first, killing your Messenger, and then you have to satisfy the Frey plot effect.