Slay the Spire 2 Forbidden Grimoire Guide
Forbidden Grimoire is one of the most powerful long term cards available to the Necrobinder in Slay the Spire 2. The effect may look simple at first, but the ability to remove cards after every combat can completely reshape your deck over the course of a run.
Deck consistency is extremely important in Slay the Spire. The fewer weak cards you draw, the more often you play your strongest ones. Forbidden Grimoire quietly solves that problem by letting you thin your deck again and again.
What Forbidden Grimoire Does In Slay the Spire 2
Forbidden Grimoire lets you remove one card from your deck after every combat for the rest of the run.
Once the Power is played in combat, its effect stays active permanently because the card is Eternal.
That means every fight gives you the option to remove a card from your deck. Over time this can dramatically improve deck consistency.
The upgraded version improves the energy cost.
Forbidden Grimoire+ reduces the cost from 2 energy to 1 energy, making it much easier to play early in combat.
Why Forbidden Grimoire Is So Strong
Card removal is one of the most powerful upgrades in Slay the Spire. Normally you must spend gold at shops or rely on rare events to remove cards.
Forbidden Grimoire gives you unlimited removal opportunities.
Over multiple combats this allows you to:
remove basic Strike cards
remove basic Defend cards
eliminate weak or outdated cards
shape your deck into a tight strategy
A thinner deck means you draw your best cards more often, which increases your overall power.
Best Cards To Remove First
The most common targets for removal are the weakest cards in your starting deck.
Good early removals include:
Strike
Defend
weak filler cards
cards that no longer support your build
As the run progresses you can remove cards that were strong early but no longer help your strategy.
When Forbidden Grimoire Is Most Valuable
Forbidden Grimoire becomes strongest when obtained early in a run. The earlier you get it, the more combats you have to remove cards.
Over a full run this can remove a huge portion of your starting deck.
This creates a smaller and more powerful deck that consistently draws the cards you actually want to play.
Final Blurb
Forbidden Grimoire is a slow but extremely powerful scaling tool for Necrobinder decks. The effect may not look flashy during a single fight, but its long term impact can be enormous.
Every combat becomes an opportunity to refine your deck. By the end of the run your deck can become much smaller, much cleaner, and far more consistent.
FAQ
What does Forbidden Grimoire do in Slay the Spire 2
Forbidden Grimoire allows you to remove one card from your deck at the end of every combat. Once played the effect remains active for the rest of the run because the card is Eternal.
Is Forbidden Grimoire a good card
Yes, Forbidden Grimoire can be extremely strong because repeated card removal improves deck consistency and allows you to remove weak cards throughout the run.
What does upgrading Forbidden Grimoire do
Upgrading Forbidden Grimoire reduces its cost from 2 energy to 1 energy. This makes it easier to play early in combat so the effect activates sooner.
Which cards should you remove first
Strike and Defend cards are usually the best early removals. These starter cards quickly become weaker than the cards you acquire later in the run.
