Snap•Attack

Is Snap good in Slay the Spire 2?

Snap is a common Necrobinder attack in Slay the Spire 2. In combat it resolves as: Osty deals 7 damage. Add Retain to a card in your Hand. It currently underperforms most alternatives, sitting at F tier in our Slay the Spire 2 card rankings.

Across 90 recorded runs, decks running it win 21.8% of the time, comfortably clear of the 18.9% average, by 2.8%. It’s a more selective pick, turning up in just 2.4% of decks that could run it. Necrobinder players keep it in 10.8% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.1 times in the decks that take it.

It performs best next to Seance — together they post a +19.4% swing in win rate. It also has strong chemistry with the relic Festive Popper, which moves its win rate by +26.3%. At 1 energy, it’s upgraded in 17.5% of runs and usually joins the deck around floor 12.

Upgraded, it gains +3 OstyDamage, which is why so many decks invest a rest-site upgrade in it. That’s 17 wins, 61 deaths, and 12 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Test Subject Boss, which closes out 8.9% of its appearances. Read on for Snap’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Necrobinder run.

Best Cards to Pair with Snap

Ranked by win-rate lift, Snap performs best alongside Seance (+19.4%), Squeeze (+18.1%), and Automation (+18.1%).

Seance+19.4%5 runsSqueeze+18.1%15 runsAutomation+18.1%3 runsDebilitate+17.2%12 runsDirge+16.5%16 runsHang+16.0%12 runs

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

Snap Win Rate by Class

Snap is drafted only by the Necrobinder, where it holds a 21.8% win rate across 90 runs.

The Necrobinderappears in 10.8% of its runs (90 tracked)

Best Relics for Snap

Snap pairs best with the relics Festive Popper (+26.3%), Funerary Mask (+23.1%), and Venerable Tea Set (+21.9%), ranked by win-rate lift.

Festive Popper+26.3%9 runsFunerary Mask+23.1%7 runsVenerable Tea Set+21.9%11 runsFragrant Mushroom+19.4%5 runsMeat on the Bone+19.4%5 runsOddly Smooth Stone+19.1%10 runs

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

Snap Card Details

Snap is a common attack costing 1 energy; it’s upgraded in 17.5% of runs and usually picked up by floor 12.

Osty deals 7 damage. Add Retain to a card in your Hand.

Upgrade: +3 OstyDamage

What Ends Runs with Snap

Snap’s most common run-enders are Test Subject Boss (8.9%), Knowledge Demon Boss (7.8%), and Entomancer Elite (5.6%).

• Test Subject Boss8.9% of runs
• Knowledge Demon Boss7.8% of runs
• Entomancer Elite5.6% of runs
• Decimillipede Elite5.6% of runs
• Ceremonial Beast Boss4.4% of runs

See Also

Compare Snap with the rest of the best Slay the Spire 2 cards, relics, and classes below.