Storm Power

Is Storm good in Slay the Spire 2?

In Slay the Spire 2, Storm is an uncommon power from the Defect card pool. Its effect: Whenever you play a Power, Channel 1 Lightning. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 437 tracked runs its win rate sits at 21.1%, 7.2% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 2.1% of eligible runs. When it is actually offered players take it 20.6% of the time, and that looks correct: those runs win 19.9% against 17.4% for runs that passed, a +2.4% pick lift over 322 decided runs. Within Defect runs it’s drafted 9.5% 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 Mad Science, which lifts its win rate by +21.4% when the two share a deck. On the relic side, Cloak Clasp is its standout companion, worth a +32.4% win-rate swing alongside it. It costs 1 energy, gets upgraded 37.5% of the time, and tends to be picked up near floor 16.

Of the runs that drafted it, 92 ended in victory against 345 deaths and 0 abandons. Its most common run-ender is Queen Boss, finishing 5.0% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Storm fits a Defect deck.

Pick or Skip: Storm

Players take Storm in 20.6% of the 1808 offers it appears in; those runs win 19.9% against 17.4% for runs that passed, a pick lift of +2.4% over 322 decided runs.

Taken 373 times out of 1808 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 Storm

Of the 4 pickup windows recorded for Storm, Act 3 is the best: 62.2% across 45 runs.

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

Best Cards to Pair with Storm

Storm’s strongest card pairings so far are Mad Science (+21.4%), Overclock (+17.7%), and Iteration (+17.0%), each shown with the win-rate lift it adds.

Mad Science+21.4%35 runsOverclock+17.7%60 runsIteration+17.0%56 runsSupercritical+16.8%51 runsModded+16.8%59 runsSpinner+16.6%54 runs

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

Storm Win Rate by Class

Exclusive to the Defect, Storm posts a 21.0% win rate over 433 tracked runs.

The Defectappears in 9.5% of its runs (433 tracked)

Best Relics for Storm

The relics that swing Storm’s win rate the most are Cloak Clasp (+32.4%), Razor Tooth (+29.3%), and Lasting Candy (+27.2%), with each lift shown.

Cloak Clasp+32.4%22 runsRazor Tooth+29.3%20 runsLasting Candy+27.2%42 runsSparkling Rouge+26.9%34 runsData Disk+25.0%51 runsPantograph+25.0%25 runs

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

Storm Card Details

A 1-energy uncommon power, Storm is upgraded 37.5% of the time and tends to enter the deck around floor 16.

Whenever you play a Power, Channel 1 Lightning.

What Ends Runs with Storm

Runs holding Storm end most often against Queen Boss (5.0%), Knowledge Demon Boss (4.8%), and Aeonglass Boss (4.3%) — the share of its runs each accounts for is shown.

• Queen Boss5.0% of runs
• Knowledge Demon Boss4.8% of runs
• Aeonglass Boss4.3% of runs
• Decimillipede Elite4.3% of runs
• Test Subject Boss4.3% of runs

See Also

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