The DefectClass
An automaton eternally modifying itself to survive. Deploys Orb technology when it must fight.
Is The Defect good in Slay the Spire 2?
In Slay the Spire 2, The Defect is one of the five classes you can climb the spire with, beginning each run at 75 HP. Its identity: An automaton eternally modifying itself to survive. Deploys Orb technology when it must fight. It’s among the tougher classes to win with at the moment, posting a 15.8% win rate below the field.
Over 493 tracked runs its win rate sits at 15.8%, 2.9% short of the 18.7% all-class average. On average its runs climb to floor 25.8. Expect about a 27-minute run, finishing with some 24.2 cards and 9.3 relics.
The standout card in its decks is Machine Learning, which wins 51.5% of the runs it appears in. Another high performer is Fasten, winning 50.0% of its runs. On the relic side, Glitter has been its strongest pickup, posting a 83.3% win rate. Winning runs tend to finish with around 5 HP to spare, near ascension 3.7.
Across those runs it banked 60 wins against 319 deaths and 114 abandons. Its most common run-ender is Queen Boss, which closes out 4.7% of its runs. See the best cards, relics, and biggest threats below for a full read on how to climb with The Defect.
The Defect Win Rate
At a 15.8% win rate, The Defect runs 2.9% behind the 18.7% cross-class average — the bars below put the two side by side.
Run Outcomes for The Defect
Across the 493 tracked The Defect runs, 60 ended in a win and 433 in a loss — a 12.2% win share, counting abandons as losses.
- Wins 12.2%
- Losses 87.8%
Best Cards for The Defect
Ranked by win rate, The Defect performs best with the cards Machine Learning (51.5%), Fasten (50.0%), and Decay (44.4%).
Machine Learning8.1% of runs
Fasten2.2% of runs
Decay2.2% of runs
Prolong2.0% of runs
Flak Cannon4.1% of runs
Doubt2.0% of runsBased on small samples — treat these as early signals, not final verdicts.
Best Relics for The Defect
The relics with the best win rate for The Defect are Glitter (83.3%), Iron Club (80.0%), and Signet Ring (75.0%), each shown with its win rate.
Glitter1.6% of runs
Iron Club1.4% of runs
Signet Ring1.0% of runs
Astrolabe1.4% of runs
Sai1.4% of runs
Intimidating Helmet1.6% of runsBased on small samples — treat these as early signals, not final verdicts.
The Defect Details
Starting at 75 HP and 99 gold, The Defect averages floor 25.8 per run with roughly 24.2 cards by the end.
An automaton eternally modifying itself to survive. Deploys Orb technology when it must fight.
What Ends The Defect Runs
Runs as The Defect end most often against Queen Boss (4.7%), Kaiser Crab Boss (3.9%), and Knowledge Demon Boss (3.7%) — the share of its runs each accounts for is shown.
- Queen Boss4.7% of runs
- Kaiser Crab Boss3.9% of runs
- Knowledge Demon Boss3.7% of runs
- Decimillipede Elite3.2% of runs
- Lagavulin Matriarch Boss3.2% of runs
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The Defect – Frequently Asked Questions
Is The Defect good in Slay the Spire 2?
Across 493 tracked runs, The Defect clears the spire 15.8% of the time — +2.9% below the average class. That reflects how often The Defect runs end in victory.
What is The Defect’s starting HP in Slay the Spire 2?
The Defect starts each run with 75 HP and 99 gold.
What are the best cards for The Defect in Slay the Spire 2?
Some of the strongest cards for The Defect right now are Machine Learning, Fasten, Decay.
How does The Defect play in Slay the Spire 2?
An automaton eternally modifying itself to survive. Deploys Orb technology when it must fight. The Defect decks average 24.2 cards and 9.3 relics by the end of a run.
What is The Defect’s win rate in Slay the Spire 2?
The Defect has a 15.8% win rate across 493 tracked runs, reaching floor 25.8 on average.
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.