Secret WeaponSkill
Put an Attack from your Draw Pile into your Hand.
Is Secret Weapon good in Slay the Spire 2?
In Slay the Spire 2, Secret Weapon is a rare skill from the Colorless card pool. Its effect: Put an Attack from your Draw Pile into your Hand. Right now it’s a premium pick that sits at S tier — one of the better cards you can add to a deck this run.
Over 19 tracked runs its win rate sits at 53.3%, 34.4% ahead of the 18.9% all-deck baseline. It sees niche play, included in only 0.5% of eligible runs. Within Necrobinder runs it’s drafted 0.1% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.0 copies on average.
Its standout pairing so far is One-Two Punch, which lifts its win rate by +10.8% when the two share a deck. On the relic side, Bag of Preparation is its standout companion, worth a +15.6% win-rate swing alongside it. It costs 0 energy, gets upgraded 36.8% of the time, and tends to be picked up near floor 24.
Of the runs that drafted it, 8 ended in victory against 7 deaths and 4 abandons. Its most common run-ender is Doormaker Boss, finishing 10.5% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Secret Weapon fits a Colorless deck.
Secret Weapon Win Rate & Pick Rate
At a 53.3% win rate, Secret Weapon runs 34.4% ahead of the 18.9% all-deck baseline — the bars below put the two side by side.
Run Outcomes with Secret Weapon
Across the 19 tracked runs that drafted Secret Weapon, 8 ended in a win and 11 in a loss — a 42.1% win share, counting abandons as losses.
- Wins 42.1%
- Losses 57.9%
Best Cards to Pair with Secret Weapon
Secret Weapon’s strongest card pairings so far are One-Two Punch (+10.8%), Pyre (+10.8%), and Shrug It Off (+10.8%), each shown with the win-rate lift it adds.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Secret Weapon Win Rate by Class
Of the 5 classes that draft Secret Weapon, it performs best with Necrobinder (100.0%), Ironclad (60.0%), and Silent (50.0%).
Best Relics for Secret Weapon
The relics that swing Secret Weapon’s win rate the most are Bag of Preparation (+15.6%), Whetstone (+15.6%), and Regal Pillow (+13.3%), with each lift shown.
Bag of Preparation5 runs
Whetstone6 runs
Regal Pillow4 runs
Pocketwatch3 runs
Meal Ticket3 runs
Venerable Tea Set3 runsBased on small co-occurring samples — treat these as early signals, not final verdicts.
Secret Weapon Card Details
A 0-energy rare skill, Secret Weapon is upgraded 36.8% of the time and tends to enter the deck around floor 24.
Put an Attack from your Draw Pile into your Hand.
What Ends Runs with Secret Weapon
Runs holding Secret Weapon end most often against Doormaker Boss (10.5%) — the share of its runs each accounts for is shown.
- Doormaker Boss10.5% of runs
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Secret Weapon – Frequently Asked Questions
Is Secret Weapon good in Slay the Spire 2?
Across 19 tracked runs, Secret Weapon has a 53.3% win rate — +34.4% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Secret Weapon do in Slay the Spire 2?
Secret Weapon costs 0 energy. Put an Attack from your Draw Pile into your Hand.
What class is Secret Weapon in Slay the Spire 2?
Secret Weapon is a Rare Colorless Skill.
Is Secret Weapon worth upgrading in Slay the Spire 2?
Secret Weapon can be upgraded at a rest site to improve its effect.
What is the best relic for Secret Weapon?
In tracked runs, Secret Weapon has performed best alongside Bag of Preparation, which lifts its win rate by +15.6% over 5 runs together.
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.