Calcify•Power

Is Calcify good in Slay the Spire 2?

In Slay the Spire 2, Calcify is an uncommon power from the Necrobinder card pool. Its effect: Osty's attacks deal 4 additional damage. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 55 tracked runs its win rate sits at 31.4%, 12.4% ahead of the 19.0% all-deck baseline. It sees niche play, included in only 1.4% of eligible runs. Within Necrobinder runs it’s drafted 6.6% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.2 copies on average.

Its standout pairing so far is Grave Warden, which lifts its win rate by +19.3% when the two share a deck. On the relic side, Oddly Smooth Stone is its standout companion, worth a +22.9% win-rate swing alongside it. It costs 1 energy, gets upgraded 36.4% of the time, and tends to be picked up near floor 12.

Of the runs that drafted it, 16 ended in victory against 35 deaths and 4 abandons. Its most common run-ender is Queen Boss, finishing 5.5% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Calcify fits a Necrobinder deck.

Best Cards to Pair with Calcify

Calcify’s strongest card pairings so far are Grave Warden (+19.3%), Defy (+17.2%), and Reanimate (+16.9%), each shown with the win-rate lift it adds.

Grave Warden+19.3%13 runsDefy+17.2%16 runsReanimate+16.9%11 runsShared Fate+16.2%5 runsFetch+15.0%14 runsDirge+14.7%13 runs

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

Calcify Win Rate by Class

Exclusive to the Necrobinder, Calcify posts a 31.4% win rate over 55 tracked runs.

The Necrobinderappears in 6.6% of its runs (55 tracked)

Best Relics for Calcify

The relics that swing Calcify’s win rate the most are Oddly Smooth Stone (+22.9%), Akabeko (+22.9%), and Bag of Marbles (+19.4%), with each lift shown.

Oddly Smooth Stone+22.9%5 runsAkabeko+22.9%5 runsBag of Marbles+19.4%9 runsGorget+17.1%14 runsCandelabra+16.5%7 runsCentennial Puzzle+16.5%9 runs

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

Calcify Card Details

A 1-energy uncommon power, Calcify is upgraded 36.4% of the time and tends to enter the deck around floor 12.

Osty's attacks deal 4 additional damage.

What Ends Runs with Calcify

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

• Queen Boss5.5% of runs
• Test Subject Boss5.5% of runs
• Decimillipede Elite5.5% of runs
• Lagavulin Matriarch Boss3.6% of runs
• Bygone Effigy Elite3.6% of runs

See Also

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