Ascender's Bane Curse

Is Ascender's Bane good in Slay the Spire 2?

In Slay the Spire 2, Ascender's Bane is a curse curse from the Curse card pool. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 8528 tracked runs its win rate sits at 10.6%, 2.4% short of the 12.9% all-deck baseline. Players reach for it often — it shows up in 54.7% of runs that can take it. Within Regent runs it’s drafted 50.6% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.0 copies on average.

Its standout pairing so far is Mad Science, which lifts its win rate by +41.4% when the two share a deck. On the relic side, History Course is its standout companion, worth a +61.6% win-rate swing alongside it. It costs - energy, gets upgraded 0.0% of the time, and tends to be picked up near floor 1.

Of the runs that drafted it, 878 ended in victory against 7441 deaths and 209 abandons. Its most common run-ender is Knowledge Demon Boss, finishing 3.1% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Ascender's Bane fits a Curse deck.

When to Pick Up Ascender's Bane

Of the 1 pickup windows recorded for Ascender's Bane, Starting deck is the best: 10.6% across 8526 runs.

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

Best Cards to Pair with Ascender's Bane

Ascender's Bane’s strongest card pairings so far are Mad Science (+41.4%), Flanking (+36.4%), and Beat Down (+36.3%), each shown with the win-rate lift it adds.

Mad Science+41.4%299 runsFlanking+36.4%54 runsBeat Down+36.3%21 runsApotheosis+33.4%48 runsSecret Technique+32.1%38 runsCorruption+32.1%30 runs

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

Ascender's Bane Win Rate by Class

Of the 5 classes that draft Ascender's Bane, it performs best with Regent (14.1%), Silent (13.7%), and Necrobinder (12.0%).

The Regent14.1%1212 runsThe Silent13.7%1862 runsThe Necrobinder12.0%1191 runsThe Ironclad11.2%1840 runsThe Defect4.8%2387 runs

Best Relics for Ascender's Bane

The relics that swing Ascender's Bane’s win rate the most are History Course (+61.6%), Iron Club (+50.6%), and Sword of Jade (+49.1%), with each lift shown.

History Course+61.6%40 runsIron Club+50.6%62 runsSword of Jade+49.1%94 runsBeautiful Bracelet+47.1%57 runsCrossbow+42.4%43 runsLooming Fruit+41.9%74 runs

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

Ascender's Bane Card Details

A --energy curse curse, Ascender's Bane is upgraded 0.0% of the time and tends to enter the deck around floor 1.

What Ends Runs with Ascender's Bane

Runs holding Ascender's Bane end most often against Knowledge Demon Boss (3.1%), Decimillipede Elite (3.1%), and Kaiser Crab Boss (3.1%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss3.1% of runs
• Decimillipede Elite3.1% of runs
• Kaiser Crab Boss3.1% of runs
• Phrog Parasite Elite2.7% of runs
• Lagavulin Matriarch Boss2.6% of runs

See Also

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