Expertise•Skill

Is Expertise good in Slay the Spire 2?

In Slay the Spire 2, Expertise is an uncommon skill from the Silent card pool. Its effect: Draw cards until you have in your Hand. Right now it’s a premium pick that sits at S tier — one of the better cards you can add to a deck this run.

Over 53 tracked runs its win rate sits at 40.0%, 21.1% ahead of the 18.9% all-deck baseline. It sees niche play, included in only 1.4% of eligible runs. Within Silent runs it’s drafted 5.3% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.1 copies on average.

Its standout pairing so far is Phantom Blades, which lifts its win rate by +17.1% when the two share a deck. On the relic side, Oddly Smooth Stone is its standout companion, worth a +20.0% win-rate swing alongside it. It costs 1 energy, gets upgraded 22.8% of the time, and tends to be picked up near floor 17.

Upgrading the card adds +1 Cards to its stat line. Of the runs that drafted it, 18 ended in victory against 27 deaths and 8 abandons. Its most common run-ender is Lagavulin Matriarch Boss, finishing 7.5% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Expertise fits a Silent deck.

Best Cards to Pair with Expertise

Expertise’s strongest card pairings so far are Phantom Blades (+17.1%), Tactician (+17.1%), and Adrenaline (+17.1%), each shown with the win-rate lift it adds.

Phantom Blades+17.1%4 runsTactician+17.1%12 runsAdrenaline+17.1%4 runsBackstab+17.1%11 runsFan of Knives+16.3%8 runsSerpent Form+15.6%9 runs

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

Expertise Win Rate by Class

Of the 2 classes that draft Expertise, it performs best with Silent (40.9%) and Ironclad (0.0%).

The Silent40.9%52 runsThe Ironclad0.0%1 runs

Best Relics for Expertise

The relics that swing Expertise’s win rate the most are Oddly Smooth Stone (+20.0%), Lantern (+18.3%), and Snecko Skull (+17.1%), with each lift shown.

Oddly Smooth Stone+20.0%11 runsLantern+18.3%15 runsSnecko Skull+17.1%4 runsRoyal Stamp+17.1%5 runsCandelabra+16.3%6 runsBronze Scales+15.6%11 runs

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

Expertise Card Details

A 1-energy uncommon skill, Expertise is upgraded 22.8% of the time and tends to enter the deck around floor 17.

Draw cards until you have in your Hand.

Upgrade: +1 Cards

What Ends Runs with Expertise

Runs holding Expertise end most often against Lagavulin Matriarch Boss (7.5%), Ceremonial Beast Boss (5.7%), and Entomancer Elite (3.8%) — the share of its runs each accounts for is shown.

• Lagavulin Matriarch Boss7.5% of runs
• Ceremonial Beast Boss5.7% of runs
• Entomancer Elite3.8% of runs
• Test Subject Boss3.8% of runs
• Aeonglass Boss3.8% of runs

See Also

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