An extra synergy card so that the payoffs for those cards aren't simply two copies of a one-use event (or asset or skill). Instead, it's two copies of two events.

At maximum capacity, it's a solid enough event. Move, deal one damage, pick up a clue and heal 1 damage and horror from any card is very solid. But it takes a lot to get there, and though it's the expansion of multiclass cards, it's still pretty hard to find a way to enable every class with useful multiclass cards. Add in team-play and cards like Teamwork and Black Market and it gets a fair bit easier, but it's still hard to plan around completely, and takes a while to ramp up.

Over all, I think you mostly want to run this card if you have access to either multiple good synergy cards due to a subclass, if you already have reasons to be running the tri-class cards, or if you synergise with the effects on the card. Ursula with any rogue card in play can get a free clue and an investigate, and pop some easy healing in for good measure if you build for it. Trish Scarborough will always see this card as a move, then pick up either two clues or evade an enemy for free, as long as you included Shrewd Analysis in your deck at no cost. That's probably good enough without tacking on some healing or damage. Nathaniel Cho sees one damage as two, which makes it a bit punchier. His limited deckbuilding means he can struggle to max it out, but he also very much likes Gang Up, so there's a reason to try and make it work. Carolyn Fern pays the effect back and has a lot of ways of getting multiple classes into play, and can take Close the Circle, Gang Up and Join the Caravan. Having a method of healing from a distance is nice, too.

Unlike Teamwork, Untimely Transaction and "You owe me one!", you don't need a team combo to take Black Market (though it's a great moment when team synergies spontaneously arise). Black Market is just an amazing addition to many event-heavy Rogue's arsenal.

If your deck is light on skills* this is literally a Fast 1 resource draw 5 card that can't draw weaknesses**. That's incredible value at 2xp even if you end up only playing 3 of those cards. Just make sure that you and your team has sufficient actions and/or resources to play those cards you just drew, or pack low cost Fast assets and events.

Like Joe's Hunch Deck, this works better when your event selection is more generally applicable (Shortcut, Intel Report, Faustian Bargain) instead of being situation-specific tech (Money Talks, Backstab, Elusive). Cantrips like Easy Mark and Tempt Fate also doubles in value, turning the fake draw from Black Market into real draw.

You can even Double, Double it, and play another Black Market straight from Black Market to reveal 15 cards from the top of your deck! Be sure to pack an Ace in the Hole for when you do, you'll use every one of those play actions on your shopping spree.

* As is common for Preston, Sefina, Bob, and many builds running Geas

** Crystallizer users, take note!

Just a quick question. I was wondering if Robes makes something Sefinas Painted World copies cheaper regardless if it's a spell being copied or not? I think it does based on the q&a regarding Uncage the soul

Defensive stance is practiced, making it an unexpected pick for a Roland or Joe who prizes all-around success*. It’s also a great option for Lily Chen, obviously, because it supports whatever stat you didn’t build out first. And you can give it to others, like the un-agile seeker or a Succeed by X rogue.

*Man, it’s tricky to describe cards without using the adjectives adaptable or versatile!

I just played a dunwhich campaign solo with this weakness, and I have to say I'm a bit lost as to why people find this weakness anything more than a slight annoyance.

Firstly, as a rogue you can hard counter it with 3xp, which is what I did scenario 3, using Another Day, Another Dollar. This means for 3xp you can remove your weakness from the game. That is insane value, that ANYONE would take, as tempo and consistency are everything. Survivors also aren't resource hungry, so to them this is a mild speed bump, as its seldom you build a deck that requires 5 resources turn 1. Leaving 3 classes that MAY struggle with this.

Secondly, it's consistent you get it every game. That to me is it's strength. There is no swing. Knowing you have to play around -2 resources means you can hard counter it with tech options, or taking two SAFE actions to counter it. Sometimes I'm engaged with something and can't two action Chronophobia, but need too. This is "whenever you want spend two actions to counter". This game is all about chaos, and your deck ideally is designed to counter it, this "weakness" removes luck and chaos, which overall makes the game easier.

In solo two actions for a weakness is crippling, in multiplayer its light, but with so many players two resources means nothing, so this weakness really hits hardest in duos, when you run the traditional "seeker/guardian asset heavy" combo. When you do run guardian/seeker combo and get indebted it isn't that big of a deal because guardian/seeker is so insanely strong.

Also remember that this makes drawing FAR less scary, which unless you have a helpful weakness i.e Dread Curse in a curse deck, is a major help. In summary, this weakness is consistent, meaning you know how to counter it, thins your deck (which is great), can be hard countered or ignored (depending on class), can safely be countered, doesn't swing games.