Putrefy Skill

Is Putrefy good in Slay the Spire 2?

In Slay the Spire 2, Putrefy is an uncommon skill from the Necrobinder card pool. Its effect: Apply Weak. Apply Vulnerable. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 475 tracked runs its win rate sits at 30.7%, 16.9% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 2.3% of eligible runs. When it is actually offered players take it 30.4% of the time, and that looks correct: those runs win 31.1% against 25.9% for runs that passed, a +5.0% pick lift over 396 decided runs. Within Necrobinder runs it’s drafted 12.8% 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 Neurosurge, which lifts its win rate by +24.4% when the two share a deck. On the relic side, Fragrant Mushroom is its standout companion, worth a +25.6% win-rate swing alongside it. It costs 1 energy, gets upgraded 32.6% of the time, and tends to be picked up near floor 16.

Of the runs that drafted it, 145 ended in victory against 327 deaths and 3 abandons. Its most common run-ender is Decimillipede Elite, finishing 5.5% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Putrefy fits a Necrobinder deck.

Pick or Skip: Putrefy

Players take Putrefy in 30.4% of the 1397 offers it appears in; those runs win 31.1% against 25.9% for runs that passed, a pick lift of +5.0% over 396 decided runs.

Taken 425 times out of 1397 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 Putrefy

Of the 4 pickup windows recorded for Putrefy, Act 3 is the best: 55.6% across 54 runs.

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

Best Cards to Pair with Putrefy

Putrefy’s strongest card pairings so far are Neurosurge (+24.4%), Glimpse Beyond (+24.4%), and Misery (+23.1%), each shown with the win-rate lift it adds.

Neurosurge+24.4%71 runsGlimpse Beyond+24.4%21 runsMisery+23.1%45 runsLegion of Bone+22.6%22 runsPagestorm+18.5%43 runsDemesne+17.7%79 runs

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

Putrefy Win Rate by Class

Exclusive to the Necrobinder, Putrefy posts a 30.5% win rate over 462 tracked runs.

The Necrobinderappears in 12.8% of its runs (462 tracked)

Best Relics for Putrefy

The relics that swing Putrefy’s win rate the most are Fragrant Mushroom (+25.6%), Tiny Mailbox (+25.6%), and Bone Flute (+25.3%), with each lift shown.

Fragrant Mushroom+25.6%31 runsTiny Mailbox+25.6%31 runsBone Flute+25.3%49 runsSturdy Clamp+24.4%21 runsTungsten Rod+23.4%16 runsLizard Tail+23.4%18 runs

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

Putrefy Card Details

A 1-energy uncommon skill, Putrefy is upgraded 32.6% of the time and tends to enter the deck around floor 16.

Apply Weak. Apply Vulnerable.

What Ends Runs with Putrefy

Runs holding Putrefy end most often against Decimillipede Elite (5.5%), Knowledge Demon Boss (4.8%), and Test Subject Boss (4.6%) — the share of its runs each accounts for is shown.

• Decimillipede Elite5.5% of runs
• Knowledge Demon Boss4.8% of runs
• Test Subject Boss4.6% of runs
• Aeonglass Boss4.4% of runs
• Kaiser Crab Boss4.2% of runs

See Also

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