Discovery Skill

Is Discovery good in Slay the Spire 2?

Discovery is an uncommon Colorless skill in Slay the Spire 2. In combat it resolves as: Choose 1 of 3 random cards to add into your Hand. It's free to play this turn. It’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 235 recorded runs, decks running it win 30.5% of the time, comfortably clear of the 13.8% average, by 16.6%. It’s a more selective pick, turning up in just 1.1% of decks that could run it. Offer data backs the pick — taken 6.5% of the time it is shown, with 37.3% for runs that took it against 29.5% for runs that did not, a +6.8% pick lift across 67 decided runs. Regent players keep it in 1.5% 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 Spectrum Shift — together they post a +18.0% swing in win rate. It also has strong chemistry with the relic Stone Cracker, which moves its win rate by +31.0%. At 1 energy, it’s upgraded in 50.2% of runs and usually joins the deck around floor 17.

That’s 71 wins, 162 deaths, and 2 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Aeonglass Boss, which closes out 8.1% of its appearances. Read on for Discovery’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Colorless run.

Pick or Skip: Discovery

Out of 1025 recorded offers Discovery is taken 6.5% of the time, and taking it is worth +6.8% in pick lift — 37.3% for runs that picked it against 29.5% for runs that skipped, across 67 decided runs.

Taken 67 times out of 1025 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 Discovery

Discovery is strongest when it joins the deck in Act 3, where runs win 61.5% across 40 runs — one of 3 recorded pickup windows.

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

Best Cards to Pair with Discovery

Ranked by win-rate lift, Discovery performs best alongside Spectrum Shift (+18.0%), Hologram (+14.2%), and Inflame (+13.0%).

Spectrum Shift+18.0%20 runsHologram+14.2%17 runsInflame+13.0%20 runsMolten Fist+12.2%30 runsWisp+11.1%19 runsCloak and Dagger+10.4%17 runs

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

Discovery Win Rate by Class

Discovery is played across 5 classes, led by Regent (35.4%), Defect (33.3%), and Necrobinder (28.9%) by win rate.

The Regent35.4%49 runsThe Defect33.3%36 runsThe Necrobinder28.9%38 runsThe Ironclad27.3%66 runsThe Silent27.3%45 runs

Best Relics for Discovery

Discovery pairs best with the relics Stone Cracker (+31.0%), Gremlin Horn (+28.5%), and Parrying Shield (+24.5%), ranked by win-rate lift.

Stone Cracker+31.0%22 runsGremlin Horn+28.5%25 runsParrying Shield+24.5%22 runsCentennial Puzzle+23.2%47 runsWhetstone+21.5%45 runsHorn Cleat+20.9%30 runs

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

Discovery Card Details

Discovery is an uncommon skill costing 1 energy; it’s upgraded in 50.2% of runs and usually picked up by floor 17.

Choose 1 of 3 random cards to add into your Hand. It's free to play this turn.

What Ends Runs with Discovery

Discovery’s most common run-enders are Aeonglass Boss (8.1%), Queen Boss (6.4%), and Test Subject Boss (5.5%).

• Aeonglass Boss8.1% of runs
• Queen Boss6.4% of runs
• Test Subject Boss5.5% of runs
• Knowledge Demon Boss3.8% of runs
• Entomancer Elite3.4% of runs

See Also

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