Supercritical•Skill

Is Supercritical good in Slay the Spire 2?

Supercritical is a rare Defect skill in Slay the Spire 2. In combat it resolves as: Gain Energy. It ranks among the strongest cards its class can draft right now, earning a spot at B tier in our Slay the Spire 2 card tier list.

Across 59 recorded runs, decks running it win 36.2% of the time, comfortably clear of the 18.9% average, by 17.3%. It’s a more selective pick, turning up in just 1.6% of decks that could run it. Necrobinder players keep it in 0.1% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.1 times in the decks that take it.

It performs best next to Hologram — together they post a +21.6% swing in win rate. It also has strong chemistry with the relic Blood Vial, which moves its win rate by +21.2%. At 0 energy, it’s upgraded in 25.4% of runs and usually joins the deck around floor 20.

Upgraded, it gains +2 Energy, which is why so many decks invest a rest-site upgrade in it. That’s 21 wins, 37 deaths, and 1 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Queen Boss, which closes out 13.6% of its appearances. Read on for Supercritical’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Defect run.

Best Cards to Pair with Supercritical

Ranked by win-rate lift, Supercritical performs best alongside Hologram (+21.6%), FTL (+19.7%), and Ultimate Defend (+17.2%).

Hologram+21.6%17 runsFTL+19.7%9 runsUltimate Defend+17.2%8 runsProlong+14.7%3 runsDecay+14.6%5 runsAll for One+14.6%5 runs

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

Supercritical Win Rate by Class

Supercritical is played across 4 classes, led by Necrobinder (100.0%), Silent (100.0%), and Defect (34.0%) by win rate.

The Necrobinder100.0%1 runsThe Silent100.0%1 runsThe Defect34.0%54 runsThe Ironclad33.3%3 runs

Best Relics for Supercritical

Supercritical pairs best with the relics Blood Vial (+21.2%), Oddly Smooth Stone (+20.4%), and Symbiotic Virus (+18.2%), ranked by win-rate lift.

Blood Vial+21.2%12 runsOddly Smooth Stone+20.4%7 runsSymbiotic Virus+18.2%4 runsVambrace+18.2%4 runsMeal Ticket+16.6%13 runsVajra+16.6%13 runs

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

Supercritical Card Details

Supercritical is a rare skill costing 0 energy; it’s upgraded in 25.4% of runs and usually picked up by floor 20.

Gain Energy.

Upgrade: +2 Energy

What Ends Runs with Supercritical

Supercritical’s most common run-enders are Queen Boss (13.6%), Knowledge Demon Boss (6.8%), and The Insatiable Boss (6.8%).

• Queen Boss13.6% of runs
• Knowledge Demon Boss6.8% of runs
• The Insatiable Boss6.8% of runs
• Decimillipede Elite3.4% of runs
• Infested Prisms Elite3.4% of runs

See Also

Compare Supercritical with the rest of the best Slay the Spire 2 cards, relics, and classes below.