Rupture Power

Is Rupture good in Slay the Spire 2?

In Slay the Spire 2, Rupture is an uncommon power from the Ironclad card pool. Its effect: Whenever you lose HP on your turn, gain 1 Strength. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 593 tracked runs its win rate sits at 26.1%, 12.3% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 2.8% of eligible runs. When it is actually offered players take it 19.6% of the time, and that looks correct: those runs win 25.2% against 22.4% for runs that passed, a +2.8% pick lift over 432 decided runs. Within Ironclad 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 1.2 copies on average.

Its standout pairing so far is Mad Science, which lifts its win rate by +29.5% when the two share a deck. On the relic side, Self-Forming Clay is its standout companion, worth a +36.7% win-rate swing alongside it. It costs 1 energy, gets upgraded 42.9% of the time, and tends to be picked up near floor 17.

Upgrading the card adds +1 Strength to its stat line. Of the runs that drafted it, 152 ended in victory against 430 deaths and 11 abandons. Its most common run-ender is Kaiser Crab Boss, finishing 5.9% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Rupture fits a Ironclad deck.

Pick or Skip: Rupture

Players take Rupture in 19.6% of the 2427 offers it appears in; those runs win 25.2% against 22.4% for runs that passed, a pick lift of +2.8% over 432 decided runs.

Taken 475 times out of 2427 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 Rupture

Of the 4 pickup windows recorded for Rupture, Act 3 is the best: 48.0% across 76 runs.

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

Best Cards to Pair with Rupture

Rupture’s strongest card pairings so far are Mad Science (+29.5%), Demonic Shield (+22.8%), and Offering (+22.0%), each shown with the win-rate lift it adds.

Mad Science+29.5%45 runsDemonic Shield+22.8%27 runsOffering+22.0%91 runsConflagration+20.0%65 runsUltimate Defend+17.5%36 runsDrum of Battle+17.4%43 runs

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

Rupture Win Rate by Class

Exclusive to the Ironclad, Rupture posts a 25.9% win rate over 589 tracked runs.

The Ironcladappears in 12.8% of its runs (589 tracked)

Best Relics for Rupture

The relics that swing Rupture’s win rate the most are Self-Forming Clay (+36.7%), Gnarled Hammer (+32.3%), and Lee's Waffle (+31.2%), with each lift shown.

Self-Forming Clay+36.7%26 runsGnarled Hammer+32.3%15 runsLee's Waffle+31.2%19 runsEternal Feather+30.5%37 runsIntimidating Helmet+30.1%16 runsLooming Fruit+28.6%24 runs

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

Rupture Card Details

A 1-energy uncommon power, Rupture is upgraded 42.9% of the time and tends to enter the deck around floor 17.

Whenever you lose HP on your turn, gain 1 Strength.

Upgrade: +1 Strength

What Ends Runs with Rupture

Runs holding Rupture end most often against Kaiser Crab Boss (5.9%), Queen Boss (5.1%), and Knowledge Demon Boss (4.4%) — the share of its runs each accounts for is shown.

• Kaiser Crab Boss5.9% of runs
• Queen Boss5.1% of runs
• Knowledge Demon Boss4.4% of runs
• Test Subject Boss4.2% of runs
• The Insatiable Boss3.7% of runs

See Also

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