Overclock•Skill

Is Overclock good in Slay the Spire 2?

Overclock is an uncommon Defect skill in Slay the Spire 2. In combat it resolves as: Draw cards. Add a Burn into your Discard Pile. It’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 67 recorded runs, decks running it win 31.0% of the time, comfortably clear of the 19.0% average, by 12.1%. It’s a more selective pick, turning up in just 1.8% of decks that could run it. Defect players keep it in 11.5% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.3 times in the decks that take it.

It performs best next to Shadow Shield — together they post a +22.5% swing in win rate. It also has strong chemistry with the relic Prayer Wheel, which moves its win rate by +23.0%. At 0 energy, it’s upgraded in 24.1% of runs and usually joins the deck around floor 13.

Upgraded, it gains +1 Cards, which is why so many decks invest a rest-site upgrade in it. That’s 18 wins, 40 deaths, and 9 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Kaiser Crab Boss, which closes out 7.5% of its appearances. Read on for Overclock’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Defect run.

Best Cards to Pair with Overclock

Ranked by win-rate lift, Overclock performs best alongside Shadow Shield (+22.5%), Reboot (+21.8%), and Leap (+21.6%).

Shadow Shield+22.5%7 runsReboot+21.8%14 runsLeap+21.6%13 runsCapacitor+21.2%19 runsDefragment+19.7%4 runsSkim+19.4%12 runs

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

Overclock Win Rate by Class

Overclock is drafted only by the Defect, where it holds a 31.0% win rate across 67 runs.

The Defectappears in 11.5% of its runs (67 tracked)

Best Relics for Overclock

Overclock pairs best with the relics Prayer Wheel (+23.0%), Ornamental Fan (+22.5%), and Amethyst Aubergine (+22.1%), ranked by win-rate lift.

Prayer Wheel+23.0%5 runsOrnamental Fan+22.5%7 runsAmethyst Aubergine+22.1%10 runsTiny Mailbox+22.1%9 runsBlood Vial+21.8%12 runsMeal Ticket+19.4%12 runs

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

Overclock Card Details

Overclock is an uncommon skill costing 0 energy; it’s upgraded in 24.1% of runs and usually picked up by floor 13.

Draw cards. Add a Burn into your Discard Pile.

Upgrade: +1 Cards

What Ends Runs with Overclock

Overclock’s most common run-enders are Kaiser Crab Boss (7.5%), Queen Boss (7.5%), and Test Subject Boss (6.0%).

• Kaiser Crab Boss7.5% of runs
• Queen Boss7.5% of runs
• Test Subject Boss6.0% of runs
• Slumbering Beetle Normal4.5% of runs
• Infested Prisms Elite4.5% of runs

See Also

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