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 5927 tracked runs its win rate sits at 12.0%, 1.9% short of the 13.9% all-deck baseline. Players reach for it often — it shows up in 51.2% of runs that can take it. Within Regent runs it’s drafted 52.3% 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 +40.6% when the two share a deck. On the relic side, History Course is its standout companion, worth a +58.0% 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, 698 ended in victory against 5104 deaths and 125 abandons. Its most common run-ender is Decimillipede Elite, finishing 3.3% 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: 12.0% across 5926 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 (+40.6%), Secret Technique (+33.5%), and Apotheosis (+32.9%), each shown with the win-rate lift it adds.

Mad Science+40.6%227 runsSecret Technique+33.5%31 runsApotheosis+32.9%36 runsBeat Down+32.8%16 runsCorruption+31.4%25 runsFolly+30.7%56 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 (13.9%), Silent (13.6%), and Necrobinder (11.8%).

The Regent13.9%1045 runsThe Silent13.6%1528 runsThe Necrobinder11.8%959 runsThe Ironclad10.7%1462 runsThe Defect9.2%900 runs

Best Relics for Ascender's Bane

The relics that swing Ascender's Bane’s win rate the most are History Course (+58.0%), Sword of Jade (+48.0%), and Crossbow (+45.3%), with each lift shown.

History Course+58.0%36 runsSword of Jade+48.0%72 runsCrossbow+45.3%27 runsIron Club+44.0%51 runsBeautiful Bracelet+40.5%39 runsSai+39.6%64 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 Decimillipede Elite (3.3%), Knowledge Demon Boss (3.2%), and Kaiser Crab Boss (3.1%) — the share of its runs each accounts for is shown.

• Decimillipede Elite3.3% of runs
• Knowledge Demon Boss3.2% of runs
• Kaiser Crab Boss3.1% of runs
• Phrog Parasite Elite2.8% of runs
• Test Subject Boss2.8% of runs

See Also

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