My list:

Their List (from memory-don't know all traits\artifacts):

T1
Being a 2-drop, he chooses to go first. Right off the bat I realize I have my Fiends too close behind the Clanrats and he will be able to hit them upon charging the Clanrats. Anyway, it's largely offensive spells he has that are out of range and only 1 buff spell got off which was no threat against me. In typical Slaanesh fashion, he gets everything right in my face, but only managing to charge in the KoS and 5 Hellstriders on the right. Combat has the KoS do what I anticipated and kills 3 1/2 Fiends after piling in\attacking twice. Clanrats actually roll decently and kill a Hellstrider on the right while the KoS gets taken down to 1 wound remaining with the Fiends + Clanrats which I was dreading; really needed to clear it so I could shoot his other heroes. He claims all 3.

Right out of the gate I (for the first time) roll a 2 on the Bell, luckily it didn't do much. I get off MMMWP with the re-roll for a 10 and he fails an unbind, but I fail WLV and Vermintide. With only 1 spell left, I decided that I needed to get off an Arcane Bolt to get my Fiends out of combat over Death Frenzy, despite knowing that the Monks would likely get in. And luckily enough, Arcane Bolt goes off finishing the KoS. I retreat my right Clanrats so I can get a charge onto the Masque on right objective, which I later realized was a mistake. Shooting phase has the juiced up Fiends (Spark + Vigordust) Wipe out Shalaxi and the Epitome. For combat, 17 monks die thanks to fighting last but they swing back in the end to kill the Chariot and some Hellstriders that piled into them from the left. I claim all 3 for 5-5 tie.

T2
I win the roll off, and my opponent concedes. The Fiends, even without MMMWP will likely kill off the 2 remaining Heroes to shut down his summoning. Skaventide Major Victory


Overall Thoughts
Yes, it's the same list Jack ran at LGT and I love it. I think I played it about as well as I could barring a couple mistakes and even if he gave me T1 I could've shot off at least 1 hero. I made the mistake of putting my Fiends 1" behind my center Clanrats, but I got pretty lucky in his 2nd pile-in with the KoS not doing much; those 5 damage attacks are what messed me up with the 1st pile-in. Other than that, the right side Clanrats should've simply ran while retreating to get within 6" of the objective so as to not expose them to combat. I got lucky that the Masque didn't kill more as I was vulnerable to BS. All in all, wouldn't change much but I may consider dropping the WLV in favor of the Bridge, though WLV works in this army to mitigate close-range threats\area denial rather than a damage piece like in other lists.

I think my biggest weakness is deployment, which is a big part of competitive games. I did okay here as he centralized his power with all his heroes, so it was a no-brainer to have the Fiends up front with the Monks right beside them; no ranged or teleport threat made this an easier decision. Anyway, I'm going to make more of an effort to get 1-2 games per week in in prep for tournament season next year.