Double EnergySkill
Double your Energy.
Is Double Energy good in Slay the Spire 2?
Double Energy is an uncommon Defect skill in Slay the Spire 2. In combat it resolves as: Double your 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 3 recorded runs, decks running it win 33.3% of the time, comfortably clear of the 12.6% average, by 20.7%. It’s a more selective pick, turning up in just 0.6% of decks that could run it. Defect players keep it in 10.7% of their runs, so it’s a familiar sight in those decks. On average it shows up 2.7 times in the decks that take it.
It performs best next to Subroutine — together they post a 0.0% swing in win rate. It also has strong chemistry with the relic Cracked Core, which moves its win rate by 0.0%. At 1 energy, it’s upgraded in 0.0% of runs and usually joins the deck around floor 15.
Upgraded, it gains -1 EnergyCost, which is why so many decks invest a rest-site upgrade in it. That’s 1 wins, 2 deaths, and 0 abandoned runs with it in the deck. Read on for Double Energy’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Defect run.
Double Energy Win Rate & Pick Rate
Double Energy’s 33.3% win rate clears the 12.6% all-deck average by 20.7%, the gap charted below.
Run Outcomes with Double Energy
Double Energy has 1 wins and 2 losses over 3 tracked runs (33.3% won); abandoned runs count as losses.
- Wins 33.3%
- Losses 66.7%
Best Cards to Pair with Double Energy
Ranked by win-rate lift, Double Energy performs best alongside Subroutine (0.0%).
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Double Energy Win Rate by Class
Double Energy is drafted only by the Defect, where it holds a 33.3% win rate across 3 runs.
The Defectappears in 10.7% of its runs (3 tracked)Best Relics for Double Energy
Double Energy pairs best with the relics Cracked Core (0.0%), ranked by win-rate lift.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Double Energy Card Details
Double Energy is an uncommon skill costing 1 energy; it’s upgraded in 0.0% of runs and usually picked up by floor 15.
Double your Energy.
Upgrade: -1 EnergyCost
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Double Energy – Frequently Asked Questions
Is Double Energy good in Slay the Spire 2?
Across 3 tracked runs, Double Energy has a 33.3% win rate — +20.7% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Double Energy do in Slay the Spire 2?
Double Energy costs 1 energy. Double your Energy.
What class is Double Energy in Slay the Spire 2?
Double Energy is an Uncommon Defect Skill.
Is Double Energy worth upgrading in Slay the Spire 2?
Players upgrade Double Energy in 0.0% of runs. Upgrading it grants -1 EnergyCost.
What is the best relic for Double Energy?
In tracked runs, Double Energy has performed best alongside Cracked Core, which lifts its win rate by 0.0% over 3 runs together.
See Also
Compare Double Energy with the rest of the best Slay the Spire 2 cards, relics, and classes below.