Juggernaut•Power

Is Juggernaut good in Slay the Spire 2?

Juggernaut is a rare Ironclad power in Slay the Spire 2. In combat it resolves as: Whenever you gain Block, deal 5 damage to a random enemy. It currently underperforms most alternatives, sitting at D tier in our Slay the Spire 2 card rankings.

Across 46 recorded runs, decks running it win 25.6% of the time, comfortably clear of the 18.9% average, by 6.6%. It’s a more selective pick, turning up in just 1.2% of decks that could run it. Regent players keep it in 0.1% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.0 times in the decks that take it.

It performs best next to Ashen Strike — together they post a +18.1% swing in win rate. It also has strong chemistry with the relic Game Piece, which moves its win rate by +17.2%. At 2 energy, it’s upgraded in 22.9% of runs and usually joins the deck around floor 17.

That’s 11 wins, 32 deaths, and 3 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Fabricator Normal, which closes out 6.5% of its appearances. Read on for Juggernaut’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Ironclad run.

Best Cards to Pair with Juggernaut

Ranked by win-rate lift, Juggernaut performs best alongside Ashen Strike (+18.1%), Flame Barrier (+15.2%), and Crimson Mantle (+13.0%).

Ashen Strike+18.1%5 runsFlame Barrier+15.2%12 runsCrimson Mantle+13.0%7 runsDominate+11.5%5 runsAscender's Bane+11.5%7 runsColossus+10.8%8 runs

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

Juggernaut Win Rate by Class

Juggernaut is played across 3 classes, led by Regent (100.0%), Ironclad (25.0%), and Silent (0.0%) by win rate.

The Regent100.0%1 runsThe Ironclad25.0%43 runsThe Silent0.0%2 runs

Best Relics for Juggernaut

Juggernaut pairs best with the relics Game Piece (+17.2%), Vajra (+15.2%), and Blood Vial (+14.2%), ranked by win-rate lift.

Game Piece+17.2%3 runsVajra+15.2%11 runsBlood Vial+14.2%9 runsRegal Pillow+13.0%7 runsCentennial Puzzle+13.0%7 runsFragrant Mushroom+11.5%5 runs

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

Juggernaut Card Details

Juggernaut is a rare power costing 2 energy; it’s upgraded in 22.9% of runs and usually picked up by floor 17.

Whenever you gain Block, deal 5 damage to a random enemy.

What Ends Runs with Juggernaut

Juggernaut’s most common run-enders are Fabricator Normal (6.5%), Knowledge Demon Boss (6.5%), and Doormaker Boss (6.5%).

• Fabricator Normal6.5% of runs
• Knowledge Demon Boss6.5% of runs
• Doormaker Boss6.5% of runs
• Test Subject Boss4.3% of runs
• The Obscura Normal4.3% of runs

See Also

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