Mary + Olive mcbride + Blessed Blade

Shockingly consistent support fighter who routinely just handles enemies that by all rights she has no business beating, throw in blessing of Isis, Paradox covenant or any other "when you draw an X" card and just watch the fireworks.

And even if that all fails, you are still just flooding the bag with blessing for your team anyway.

Blessing turn Olives weird probability of success into an autowin magnet, outside of Mary's style combining Olive and ancient covenant is a scary combo.

Quick tip: in many scenarios, you may be able to begin the test on this card, but spend your clues on something useful before suffering the effects of a failure. There are two player windows () after a skill test begins but before pulling a chaos token. Usually that's to activate an ability on something like Hyperawareness, but any ability with the symbol can legally be triggered during that window. Some scenarios let you spend clues as a to do scenario specific things (Midnight Masks, Bad Blood and The Vanishing of Elina Harper come to mind). And in most scenarios, spending clues to advance the act can be done during any player window as well (of the top of my head, can't remember if this applies to any scenarios with false lead, though..). If you know False Lead is in the deck, and you have enough clues to do some needful thing, it's good strategy to hold them through the mythos phase. That way, false lead loses surge, but still can't touch you, because you can spend those clues at the last moment! Also, if false lead is in the deck, Hunting Shadow probably is as well, and having clues at least increases your options on that card.

This card DESTROYED us. The fact this is 3 damage AND lose 3 action easily makes it one of the most powerful treacheries in the game. Definately have a mystic carry Ward of Protection or Deny Existence if you play Carcossa.

One of the "take a bunch of damage and.or horror" signature weaknesses, unusual for being randomized. Looking at the two elements, the effect and the discard condition, we get:

The effect: You take 0-4 damage and horror, which is unlikely to kill Jim, but it's unpleasant, as it can lose a scenario or campaign and/or net you a Trauma if you are unlucky. The 3 campaigns that make Jim more powerful makes this more deadly, which is a nice balance. Olive McBride can mitigate it (or make it worse), and Dark Prophecy can help. Sadly, Eldritch Inspiration is no help at all. I guess Jacqueline could help out, but what is the chance of Jim and her being in the same scenario?

The discard condition: You draw it, it's Revelation effect happens, you discard it. Simple, but it can happen multiple times, if you deck yourself or play Quantum Flux.

All in all, this is an average signature weakness, maybe a bit above in some campaigns/scenarios.

One of those signature Weakness that can end the Campaign. Looking at the two elements, the effect and the discard condition, we get:

The effect: Draw an enemy, then someone has to kill it by the end of the scenario or Zoey gets hurt. The nasty sting is that if Zoey is taken out by damage or horror, she ends up with 2 Trauma for her troubles. If you are unlucky enough to have this happen a couple of times, it's new investigator time. Fortunately, unlike Searching for Izzie, this card asks you to do what Zoey always wants to do.

The discard condition: Well, you discard it when the enemy gets killed, which is exactly what Zoey wants to do. It can be extremely variable, since you can draw a Swarm of Rats or a Servant of the Lurker. Drawing an Aloof enemy is, of course, extra annoying. It also benefits from the "loophole" that anyone can resolve it, so if a very weak enemy comes out or another investigator is combat-ready, this can be dealt with pretty easily. As usual with this style of Weakness, when you draw it is critical, as is the map. Drawing it one turn before Resigning or dooming out in The Unspeakable Oath is way worse than drawing it early in The Secret Name. It can take anywhere from 2 to 6+ actions to clear, so it is a very situational weakness. You can mitigate the effects with "Get over here!" or Righteous Hunt.

All in all, this is an above average signature weakness, maybe average if all of the investigators are combat-ready.