Nightmare•Skill

Is Nightmare good in Slay the Spire 2?

In Slay the Spire 2, Nightmare is a rare skill from the Silent card pool. Its effect: Choose a card. Next turn, add 3 copies of that card into your Hand. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 42 tracked runs its win rate sits at 25.0%, 6.0% ahead of the 18.9% all-deck baseline. It sees niche play, included in only 1.1% of eligible runs. Within Silent runs it’s drafted 4.3% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.1 copies on average.

Its standout pairing so far is Ascender's Bane, which lifts its win rate by +19.1% when the two share a deck. On the relic side, Cloak Clasp is its standout companion, worth a +21.4% win-rate swing alongside it. It costs 3 energy, gets upgraded 38.6% of the time, and tends to be picked up near floor 15.

Upgrading the card adds -1 EnergyCost to its stat line. Of the runs that drafted it, 9 ended in victory against 27 deaths and 6 abandons. Its most common run-ender is Kaiser Crab Boss, finishing 9.5% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Nightmare fits a Silent deck.

Best Cards to Pair with Nightmare

Nightmare’s strongest card pairings so far are Ascender's Bane (+19.1%), Panache (+17.3%), and Tools of the Trade (+15.6%), each shown with the win-rate lift it adds.

Ascender's Bane+19.1%12 runsPanache+17.3%3 runsTools of the Trade+15.6%6 runsBubble Bubble+14.3%4 runsHand Trick+11.7%5 runsEnvenom+11.7%5 runs

Based on small co-occurring samples — treat these as early signals, not final verdicts.

Nightmare Win Rate by Class

Exclusive to the Silent, Nightmare posts a 25.0% win rate over 42 tracked runs.

The Silentappears in 4.3% of its runs (42 tracked)

Best Relics for Nightmare

The relics that swing Nightmare’s win rate the most are Cloak Clasp (+21.4%), Oddly Smooth Stone (+19.1%), and Venerable Tea Set (+18.3%), with each lift shown.

Cloak Clasp+21.4%4 runsOddly Smooth Stone+19.1%7 runsVenerable Tea Set+18.3%6 runsLantern+18.3%5 runsPendulum+18.3%5 runsHefty Tablet+18.3%6 runs

Based on small co-occurring samples — treat these as early signals, not final verdicts.

Nightmare Card Details

A 3-energy rare skill, Nightmare is upgraded 38.6% of the time and tends to enter the deck around floor 15.

Choose a card. Next turn, add 3 copies of that card into your Hand.

Upgrade: -1 EnergyCost

What Ends Runs with Nightmare

Runs holding Nightmare end most often against Kaiser Crab Boss (9.5%), Byrdonis Elite (4.8%), and Lagavulin Matriarch Boss (4.8%) — the share of its runs each accounts for is shown.

• Kaiser Crab Boss9.5% of runs
• Byrdonis Elite4.8% of runs
• Lagavulin Matriarch Boss4.8% of runs
• Infested Prisms Elite4.8% of runs
• Test Subject Boss4.8% of runs

See Also

Keep exploring Slay the Spire 2 tier lists and stats below.