Sneaky Power

Is Sneaky good in Slay the Spire 2?

In Slay the Spire 2, Sneaky is a rare power from the Silent card pool. Its effect: Whenever another player attacks an enemy, gain 1 Block. Right now it’s a premium pick that sits at B tier — one of the better cards you can add to a deck this run.

Over 113 tracked runs its win rate sits at 45.1%, 31.3% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 0.5% of eligible runs. When it is actually offered players take it 33.9% of the time, and that looks correct: those runs win 47.8% against 42.0% for runs that passed, a +5.3% pick lift over 92 decided runs. Within Silent runs it’s drafted 2.3% 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 Flanking, which lifts its win rate by +14.6% when the two share a deck. On the relic side, Bag of Marbles is its standout companion, worth a +21.0% win-rate swing alongside it. It costs 2 energy, gets upgraded 44.0% of the time, and tends to be picked up near floor 20.

Of the runs that drafted it, 51 ended in victory against 62 deaths and 0 abandons. Its most common run-ender is Queen Boss, finishing 10.6% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Sneaky fits a Silent deck.

Pick or Skip: Sneaky

Players take Sneaky in 33.9% of the 280 offers it appears in; those runs win 47.8% against 42.0% for runs that passed, a pick lift of +5.3% over 92 decided runs.

Taken 95 times out of 280 offers.

Pick rate when offered counts offers, not runs: out of every time the game put this in front of a player, how often it was taken. It is not the same number as the share of runs that end up containing it.

Pick lift is the sample-adjusted gap between runs that took the option and runs that passed on it. It is the fair way to rank choices, because raw win rates put the smallest samples on top.

When to Pick Up Sneaky

Of the 3 pickup windows recorded for Sneaky, Act 2 is the best: 57.1% across 49 runs.

Win rate of runs by the act Sneaky entered the deck. Acts that have not reached the sample floor show their run count only.

Best Cards to Pair with Sneaky

Sneaky’s strongest card pairings so far are Flanking (+14.6%), Assassinate (+14.5%), and Reflex (+12.7%), each shown with the win-rate lift it adds.

Flanking+14.6%21 runsAssassinate+14.5%16 runsReflex+12.7%22 runsBlur+11.0%23 runsStrangle+10.3%18 runsBullet Time+8.9%15 runs

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

Sneaky Win Rate by Class

Exclusive to the Silent, Sneaky posts a 44.9% win rate over 107 tracked runs.

The Silentappears in 2.3% of its runs (107 tracked)

Best Relics for Sneaky

The relics that swing Sneaky’s win rate the most are Bag of Marbles (+21.0%), Book of Five Rings (+17.4%), and Vajra (+17.0%), with each lift shown.

Bag of Marbles+21.0%18 runsBook of Five Rings+17.4%18 runsVajra+17.0%23 runsBronze Scales+16.5%33 runsPendulum+15.2%24 runsHappy Flower+14.6%21 runs

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

Sneaky Card Details

A 2-energy rare power, Sneaky is upgraded 44.0% of the time and tends to enter the deck around floor 20.

Whenever another player attacks an enemy, gain 1 Block.

What Ends Runs with Sneaky

Runs holding Sneaky end most often against Queen Boss (10.6%), Test Subject Boss (8.0%), and Aeonglass Boss (6.2%) — the share of its runs each accounts for is shown.

• Queen Boss10.6% of runs
• Test Subject Boss8.0% of runs
• Aeonglass Boss6.2% of runs
• Knowledge Demon Boss4.4% of runs
• Decimillipede Elite4.4% of runs

See Also

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