Chapter 1: Friends in Need

Remember that all attacks against the opposing party have a bane from obscurement until the end of Tzal's next turn. Or until they move out of the steam, as their attacks will also have a bane.

Corrosive Globule and any other spell targeting an NPC's attribute wouldn't be affected by obscurement. Obscurement only gives banes to "attacks", which in this system is defined as using a weapon or unarmed strike. So Tzal's roll would actually be a 22.

Pyre takes 1d6 damage from Dreadful Presence, yes?

Edit: NVM. It's at the end of THEIR turn.

If I’m reading it correctly, the dreadful presence damage happens after the target has acted. Since they already acted this round, they roll luck at the end of the turn to end the effect before they would potentially take damage from acting on round 2. I may be mistaken, though.

It doesn't say they have to act, it says "ends its turn." So they could technically do nothing on their turn (perhaps because they're afflicted by another status effect) and still take damage. Unless that's what you mean?

And it simply says "luck ends," so I'm not sure WHEN they roll that. But you all know this system better.

Round 1 began with all of our party refraining from taking the initiative, so the Silver Coins took their turns first. Afterwards, Aazim took his turn and cast Dreadful Presence, inflicting them with vulnerable (luck ends). Since they already took and ended their turns that round, they were not set to take any damage from the effect.
All "luck ends" effects are rolled at the end of the round, so the Silver Coins made their luck rolls to end vulnerable at the end of round 1. Since two of them succeeded, the one who is still vulnerable will take 1d6 of damage as long as they are close enough to Aazim when they end their turn in round 2. Afterwards, they will be able to make their next luck roll at the end of round 2. Alternatively, they can choose to use their action to "Overcome", allowing them to make a luck roll on their turn.
Due to the way "luck ends" effects work, the most effective way to use them is to apply them as close to the beginning of a round as possible. Otherwise, you can end up in scenarios like this one where the enemies can remove the effect before suffering from it.
Hope that all made sense, even if it was wordy.

Well, then that's potentially a critical success. Regarding the dreadful presence, I think @TheForsakenEvil is absolutely right. Here the catch is, if the enemy tries to overcome the effect with an overcome action, its losing the action to do it. If it chooses to take an action, then it will take the damage and wait for the luck end to happen at the end of the round.

Sash uses her reaction to Cover Ally, redirecting the attack from Pyre to herself. Since she used the Defend action last round, she attempts a luck roll to turn the successful hit to a failure. Unfortunately for her, the luck roll failed, so she takes the damage.

Lauretta is not taking the initiative. If either @Windyridge or @Totes_McGee wish to do so, they may act now before the enemy team.

I never considered the possibility of combining Defend and Cover Ally. That's so clever.

8 damage to Gabalan. Lauretta must make an Agility challenge roll. On a failure, she drops her weapon and Brutus will use his reaction to catch it.

@Windyridge,@TheForsakenEvil,@Totes_McGee may all act now before the end of the round.

@Dmbrainiac Obscurement from the steam ended after Tzal's turn in which he threw the acid ball. So Mikka and Brutus wouldn't have had a bane from that. However, unarmed strikes are considered improvised weapons, giving Brutus a bane that accounts for the 1 that was rolled. The rules for disarm also give an additional two banes when attempted with an improvised weapon. In total, Brutus would have 3 banes on his roll to disarm Lauretta.
To be honest, I find the rules for disarming to be very harsh in SotWW, which is why I had Lauretta go for a called shot instead. For the sake of expediency since I'm not sure if you'll see this before Monday, I'll go ahead and roll the banes for Brutus to see if he still would have hit. If he does and she fails her Agility roll, I'll go ahead and make his catch roll to see if he catches her weapon as well (catching requiring a roll is also horrible imo). I can tell his Agility from the Boiling Water roll, fortunately. If this is overstepping, please let me know. Just thought it'd be efficient :)
Edit Brutus got a 17 on his d20, with a +2 to get to 19. Subtracting the 5 means his result is 14, so he would've missed her defense of 15.

Okay, thanks, this is just my second combat with this system! So Brutus fails to disarm.