Metamorphosis Skill

Is Metamorphosis good in Slay the Spire 2?

In Slay the Spire 2, Metamorphosis is an event skill from the Event card pool. Its effect: Add random Attacks into your Draw Pile. They're free to play this combat. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 671 tracked runs its win rate sits at 21.0%, 7.2% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 2.7% of eligible runs. Within Necrobinder runs it’s drafted 2.4% 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 Pagestorm, which lifts its win rate by +31.4% when the two share a deck. On the relic side, Sword of Jade is its standout companion, worth a +35.2% win-rate swing alongside it. It costs 2 energy, gets upgraded 29.6% of the time, and tends to be picked up near floor 24.

Upgrading the card adds +2 Cards to its stat line. Of the runs that drafted it, 140 ended in victory against 527 deaths and 4 abandons. Its most common run-ender is Kaiser Crab Boss, finishing 12.1% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Metamorphosis fits a Event deck.

When to Pick Up Metamorphosis

Of the 1 pickup windows recorded for Metamorphosis, Act 2 is the best: 21.0% across 671 runs.

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

Best Cards to Pair with Metamorphosis

Metamorphosis’s strongest card pairings so far are Pagestorm (+31.4%), Gold Axe (+27.4%), and Dying Star (+27.4%), each shown with the win-rate lift it adds.

Pagestorm+31.4%15 runsGold Axe+27.4%15 runsDying Star+27.4%15 runsStardust+23.1%22 runsDemesne+20.7%19 runsSeven Stars+18.0%21 runs

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

Metamorphosis Win Rate by Class

Of the 5 classes that draft Metamorphosis, it performs best with Necrobinder (26.9%), Regent (25.4%), and Defect (20.0%).

The Necrobinder26.9%105 runsThe Regent25.4%134 runsThe Defect20.0%157 runsThe Ironclad18.9%143 runsThe Silent14.8%129 runs

Best Relics for Metamorphosis

The relics that swing Metamorphosis’s win rate the most are Sword of Jade (+35.2%), Mango (+25.6%), and Pollinous Core (+22.2%), with each lift shown.

Sword of Jade+35.2%24 runsMango+25.6%31 runsPollinous Core+22.2%18 runsPael's Blood+20.9%26 runsLizard Tail+20.7%32 runsTri-Boomerang+20.1%17 runs

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

Metamorphosis Card Details

A 2-energy event skill, Metamorphosis is upgraded 29.6% of the time and tends to enter the deck around floor 24.

Add random Attacks into your Draw Pile. They're free to play this combat.

Upgrade: +2 Cards

What Ends Runs with Metamorphosis

Runs holding Metamorphosis end most often against Kaiser Crab Boss (12.1%), Knowledge Demon Boss (11.3%), and The Insatiable Boss (6.4%) — the share of its runs each accounts for is shown.

• Kaiser Crab Boss12.1% of runs
• Knowledge Demon Boss11.3% of runs
• The Insatiable Boss6.4% of runs
• Queen Boss6.0% of runs
• Test Subject Boss6.0% of runs

See Also

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