Energy Surge•Skill

Is Energy Surge good in Slay the Spire 2?

In Slay the Spire 2, Energy Surge is an uncommon skill from the Defect card pool. Its effect: ALL players gain Energy. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 91 tracked runs its win rate sits at 28.9%, 14.9% ahead of the 14.0% all-deck baseline. It sees niche play, included in only 0.8% of eligible runs. Offer data argues the other way: taken 59.4% of the time it is shown, runs that picked it win 28.6% against 46.1% for runs that passed — a -15.7% pick lift across 84 decided runs. Within Defect runs it’s drafted 5.1% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.3 copies on average.

Its standout pairing so far is Feral, which lifts its win rate by +18.9% when the two share a deck. On the relic side, Bag of Marbles is its standout companion, worth a +20.7% win-rate swing alongside it. It costs 1 energy, gets upgraded 32.8% of the time, and tends to be picked up near floor 15.

Upgrading the card adds +1 Energy to its stat line. Of the runs that drafted it, 26 ended in victory against 64 deaths and 1 abandons. Its most common run-ender is Queen Boss, finishing 11.0% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Energy Surge fits a Defect deck.

Pick or Skip: Energy Surge

Players take Energy Surge in 59.4% of the 160 offers it appears in; those runs win 28.6% against 46.1% for runs that passed, a pick lift of -15.7% over 84 decided runs.

Taken 95 times out of 160 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 Energy Surge

Of the 3 pickup windows recorded for Energy Surge, Act 2 is the best: 33.3% across 33 runs.

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

Best Cards to Pair with Energy Surge

Energy Surge’s strongest card pairings so far are Feral (+18.9%), Hailstorm (+11.4%), and Coolheaded (+7.9%), each shown with the win-rate lift it adds.

Feral+18.9%18 runsHailstorm+11.4%17 runsCoolheaded+7.9%25 runsAscender's Bane+7.8%36 runsLeap+7.4%20 runsCapacitor+6.9%27 runs

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

Energy Surge Win Rate by Class

Exclusive to the Defect, Energy Surge posts a 27.4% win rate over 85 tracked runs.

The Defectappears in 5.1% of its runs (85 tracked)

Best Relics for Energy Surge

The relics that swing Energy Surge’s win rate the most are Bag of Marbles (+20.7%), Bag of Preparation (+19.0%), and Strawberry (+18.7%), with each lift shown.

Bag of Marbles+20.7%17 runsBag of Preparation+19.0%19 runsStrawberry+18.7%16 runsData Disk+15.1%17 runsRegal Pillow+13.6%18 runsBlood Vial+11.4%18 runs

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

Energy Surge Card Details

A 1-energy uncommon skill, Energy Surge is upgraded 32.8% of the time and tends to enter the deck around floor 15.

ALL players gain Energy.

Upgrade: +1 Energy

What Ends Runs with Energy Surge

Runs holding Energy Surge end most often against Queen Boss (11.0%), Test Subject Boss (8.8%), and Decimillipede Elite (5.5%) — the share of its runs each accounts for is shown.

• Queen Boss11.0% of runs
• Test Subject Boss8.8% of runs
• Decimillipede Elite5.5% of runs
• Aeonglass Boss4.4% of runs
• Infested Prisms Elite4.4% of runs

See Also

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