This card is a fantastic deck-cutter.

As skill cards go, +1 icon on a single test is low, the variety helps a bit, most characters can muster a use for either or , and anybody can use .

The benefit, the mini tutor, is just crazy for an action-less and cost-less effect. Use it to pull out key cards a little faster and/or obtain solutions to standing issues.

The low boost and useful success benefit means that you should play Eureka! on low risk tests, use it to push for a +3 or +4 advantage to secure the test. On standard/easy pushing for +2 is fine in early scenarios.

Any character with innate access should give Eureka! at least a passing thought.

Minh Thi Phan and Silas Marsh really like skills, this is obviously true for a strong one like Eureka!.

Eureka! is uniquely good for Norman Withers (for whom skills are low priority) since it bypasses his revealed top card and shuffles his deck, this gives him two chances to dig useful cards out of a deck with something unhelpful revealed on top.

Can't wait to try this card out . There are so many powerful options that you can attach to her. One underrated option that I want to attempt is Moonlight Ritual. Let's say you're Marie with both David Renfield and De Vermis Mysteriis running. This would allow you to run really high on doom effects knowing that doom cancellation is right there on tap multiple times. Marie can also take Truth from Fiction as a splash card, along with a number of really good insight cards to recur. You could potentially use Moonlight Ritual up to 5 times (or more with recursion), allowing you to run with big resources, semi-permanent will boost from Renfield and the ability to keep replaying key spells. I'm not quite there yet with the deck, but it could be a lot of fun.

The other one I like of course is Deny Existence. Multiple cancels on tap is great, esp if you're playing a more fighty mystic like Akachi. Ward of Protection for certain scenarios would be insanely useful, Blood-Rite would be great of course. For certain big money mystic builds the forthcoming Storm of Spirits(3) could be in play.

Oh, and I should add that the 3 health on this ally is great.

Looks like the best spell to attach is Blood-Rite! This combo can be used with Akachi Onyele, Jim Culver and Marie Lambeau. Of these, I like it with Marie Lambeau best because she can also attach her special event, Mystifying Song, to give the investigator(s) up to 3 extra turns!

Rules clarification

Rules answer from FFQ: All aspects of an effect have timing priority over all "after..." triggering conditions that might arise as a consequence of that effect. (For example, if an effect reads "Gain 3 resources and draw 3 cards," resolve both aspects of the effect (gaining resources and drawing cards) before initiating an ability that reads "After drawing a card...")

So if you draw a weakness that interacts with your deck like Through the Gates or The Harbinger, you shuffle your deck before those effects take place.

Joe Diamond

I was talking to a friend about potential upgrades to his Joe deck when, with a flash of insight, I remembered that this card exists. Aside from the obvious point that Scientific Theory boosts the two stats Joe uses to win the game, there are a few reasons it sits well in a Joe deck.

Composure cards can be protected from horror by assigning that horror to other assets with sanity values, like allies. Joe Diamond, with his low and unremarkable sanity, already benefits from multiple high-sanity companions. Charisma works well, as does a Miskatonic Army style of deck, which runs Calling in Favors and series of cheap allies with abilities that trigger after entering play -- all such allies have two sanity. They may not allow Scientific Theory to say in play forever, but they will let it last longer than it otherwise would.

It is worth noting that The Circle Undone gave us Mr. "Rook", a very powerful, disposable ally -- he only needs to stay around for three turns. Mr "Rook" improves any Miskatonic Army he enlists in. Though he lacks the Miskatonic trait making it more of a Mr "Tonic" Army.

Mr Diamond can pony up the resources to get use out of Scientific Theory. His cycle also gave us Crack the Case, which is one of the best level 0 economy cards, and he frequently spends an action playing an event for free. If you go without taboos you have access to Milan money (ideally with Charisma), and if you go with them Scientific Theory shoots up in value because its biggest competitor, Higher Education, is a harder sell.