Backstab•Attack

Is Backstab good in Slay the Spire 2?

In Slay the Spire 2, Backstab is an uncommon attack from the Silent card pool. Its effect: Deal 11 damage. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 166 tracked runs its win rate sits at 29.8%, 10.8% ahead of the 19.0% all-deck baseline. It sees niche play, included in only 4.4% of eligible runs. Within Ironclad 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 1.3 copies on average.

Its standout pairing so far is Mad Science, which lifts its win rate by +28.0% when the two share a deck. On the relic side, Daughter of the Wind is its standout companion, worth a +26.3% win-rate swing alongside it. It costs 0 energy, gets upgraded 22.1% of the time, and tends to be picked up near floor 13.

Upgrading the card adds +4 Damage to its stat line. Of the runs that drafted it, 45 ended in victory against 106 deaths and 15 abandons. Its most common run-ender is Knowledge Demon Boss, finishing 6.0% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Backstab fits a Silent deck.

Best Cards to Pair with Backstab

Backstab’s strongest card pairings so far are Mad Science (+28.0%), Knife Trap (+25.3%), and Reflex (+25.0%), each shown with the win-rate lift it adds.

Mad Science+28.0%9 runsKnife Trap+25.3%19 runsReflex+25.0%22 runsSerpent Form+22.5%11 runsExpertise+22.5%11 runsTactician+21.6%24 runs

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

Backstab Win Rate by Class

Of the 3 classes that draft Backstab, it performs best with Ironclad (100.0%), Silent (29.5%), and Defect (0.0%).

The Ironclad100.0%1 runsThe Silent29.5%164 runsThe Defect0.0%1 runs

Best Relics for Backstab

The relics that swing Backstab’s win rate the most are Daughter of the Wind (+26.3%), Lantern (+25.7%), and Chandelier (+25.1%), with each lift shown.

Daughter of the Wind+26.3%6 runsLantern+25.7%35 runsChandelier+25.1%11 runsReptile Trinket+22.5%12 runsRegal Pillow+21.8%21 runsPendulum+21.4%29 runs

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

Backstab Card Details

A 0-energy uncommon attack, Backstab is upgraded 22.1% of the time and tends to enter the deck around floor 13.

Deal 11 damage.

Upgrade: +4 Damage

What Ends Runs with Backstab

Runs holding Backstab end most often against Knowledge Demon Boss (6.0%), Entomancer Elite (5.4%), and Kaiser Crab Boss (4.8%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss6.0% of runs
• Entomancer Elite5.4% of runs
• Kaiser Crab Boss4.8% of runs
• Test Subject Boss4.2% of runs
• Queen Boss4.2% of runs

See Also

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