Undeath•Skill

Is Undeath good in Slay the Spire 2?

In Slay the Spire 2, Undeath is a rare skill from the Necrobinder card pool. Its effect: Gain 7 Block. Add a copy of this card into your Discard Pile. 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 66 tracked runs its win rate sits at 39.3%, 20.4% ahead of the 19.0% all-deck baseline. It sees niche play, included in only 1.7% of eligible runs. Within Silent 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 1.1 copies on average.

Its standout pairing so far is Bury, which lifts its win rate by +17.3% when the two share a deck. On the relic side, Anchor is its standout companion, worth a +23.5% win-rate swing alongside it. It costs 0 energy, gets upgraded 34.8% of the time, and tends to be picked up near floor 16.

Upgrading the card adds +2 Block to its stat line. Of the runs that drafted it, 24 ended in victory against 37 deaths and 5 abandons. Its most common run-ender is Knowledge Demon Boss, finishing 7.6% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Undeath fits a Necrobinder deck.

Best Cards to Pair with Undeath

Undeath’s strongest card pairings so far are Bury (+17.3%), Delay (+17.3%), and Reanimate (+17.3%), each shown with the win-rate lift it adds.

Bury+17.3%4 runsDelay+17.3%4 runsReanimate+17.3%4 runsLegion of Bone+17.3%4 runsHang+16.5%6 runsDemesne+14.9%13 runs

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

Undeath Win Rate by Class

Of the 2 classes that draft Undeath, it performs best with Silent (100.0%) and Necrobinder (38.3%).

The Silent100.0%1 runsThe Necrobinder38.3%65 runs

Best Relics for Undeath

The relics that swing Undeath’s win rate the most are Anchor (+23.5%), Gorget (+22.9%), and Gremlin Horn (+18.2%), with each lift shown.

Anchor+23.5%9 runsGorget+22.9%14 runsGremlin Horn+18.2%9 runsPen Nib+17.3%4 runsLee's Waffle+17.3%4 runsCloak Clasp+17.3%4 runs

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

Undeath Card Details

A 0-energy rare skill, Undeath is upgraded 34.8% of the time and tends to enter the deck around floor 16.

Gain 7 Block. Add a copy of this card into your Discard Pile.

Upgrade: +2 Block

What Ends Runs with Undeath

Runs holding Undeath end most often against Knowledge Demon Boss (7.6%), Hunter Killer Normal (3.0%), and Entomancer Elite (3.0%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss7.6% of runs
• Hunter Killer Normal3.0% of runs
• Entomancer Elite3.0% of runs
• The Kin Boss3.0% of runs
• Decimillipede Elite3.0% of runs

See Also

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