Vicious•Power

Is Vicious good in Slay the Spire 2?

Vicious is an uncommon Ironclad power in Slay the Spire 2. In combat it resolves as: Whenever you apply Vulnerable, draw cards. It ranks among the strongest cards its class can draft right now, earning a spot at B tier in our Slay the Spire 2 card tier list.

Across 66 recorded runs, decks running it win 38.5% of the time, comfortably clear of the 18.9% average, by 19.5%. It’s a more selective pick, turning up in just 1.7% of decks that could run it. Ironclad players keep it in 9.3% 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 Second Wind — together they post a +16.8% swing in win rate. It also has strong chemistry with the relic Festive Popper, which moves its win rate by +18.6%. At 1 energy, it’s upgraded in 34.7% of runs and usually joins the deck around floor 17.

Upgraded, it gains +1 Cards, which is why so many decks invest a rest-site upgrade in it. That’s 20 wins, 32 deaths, and 14 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Test Subject Boss, which closes out 7.6% of its appearances. Read on for Vicious’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Ironclad run.

Best Cards to Pair with Vicious

Ranked by win-rate lift, Vicious performs best alongside Second Wind (+16.8%), Offering (+16.8%), and Breakthrough (+15.8%).

Second Wind+16.8%7 runsOffering+16.8%6 runsBreakthrough+15.8%12 runsAshen Strike+13.8%5 runsFeed+13.6%7 runsCruelty+13.2%13 runs

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

Vicious Win Rate by Class

Vicious is drafted only by the Ironclad, where it holds a 38.5% win rate across 66 runs.

The Ironcladappears in 9.3% of its runs (66 tracked)

Best Relics for Vicious

Vicious pairs best with the relics Festive Popper (+18.6%), Paper Phrog (+17.6%), and Stone Cracker (+17.6%), ranked by win-rate lift.

Festive Popper+18.6%9 runsPaper Phrog+17.6%4 runsStone Cracker+17.6%5 runsRazor Tooth+17.6%4 runsVenerable Tea Set+17.4%14 runsGorget+16.8%7 runs

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

Vicious Card Details

Vicious is an uncommon power costing 1 energy; it’s upgraded in 34.7% of runs and usually picked up by floor 17.

Whenever you apply Vulnerable, draw cards.

Upgrade: +1 Cards

What Ends Runs with Vicious

Vicious’s most common run-enders are Test Subject Boss (7.6%), Decimillipede Elite (6.1%), and Entomancer Elite (4.5%).

• Test Subject Boss7.6% of runs
• Decimillipede Elite6.1% of runs
• Entomancer Elite4.5% of runs
• Queen Boss4.5% of runs
• Ceremonial Beast Boss3.0% of runs

See Also

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