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’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 312 recorded runs, decks running it win 30.4% of the time, comfortably clear of the 13.9% average, by 16.5%. It’s a more selective pick, turning up in just 1.2% of decks that could run it. Offer data is close to a wash — 25.6% of offers taken, 34.9% for runs that picked it against 33.7% for runs that skipped, a pick lift of just +1.2% over 238 decided runs. Silent players keep it in 0.2% 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 Stoke — together they post a +26.4% swing in win rate. It also has strong chemistry with the relic Mummified Hand, which moves its win rate by +33.8%. At 2 energy, it’s upgraded in 32.6% of runs and usually joins the deck around floor 17.

That’s 94 wins, 215 deaths, and 3 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Test Subject Boss, which closes out 5.4% 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.

Pick or Skip: Juggernaut

Out of 990 recorded offers Juggernaut is taken 25.6% of the time, and taking it is worth +1.2% in pick lift — 34.9% for runs that picked it against 33.7% for runs that skipped, across 238 decided runs.

Taken 253 times out of 990 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 Juggernaut

Juggernaut is strongest when it joins the deck in Act 3, where runs win 66.7% across 21 runs — one of 4 recorded pickup windows.

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

Best Cards to Pair with Juggernaut

Ranked by win-rate lift, Juggernaut performs best alongside Stoke (+26.4%), Cascade (+24.9%), and Not Yet (+24.0%).

Stoke+26.4%27 runsCascade+24.9%28 runsNot Yet+24.0%26 runsMangle+21.0%30 runsOffering+19.7%28 runsDemon Form+19.7%41 runs

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

Juggernaut Win Rate by Class

Juggernaut is played across 2 classes, led by Silent (40.0%) and Ironclad (28.8%) by win rate.

The Silent40.0%10 runsThe Ironclad28.8%288 runs

Best Relics for Juggernaut

Juggernaut pairs best with the relics Mummified Hand (+33.8%), Ornamental Fan (+28.2%), and Lee's Waffle (+27.4%), ranked by win-rate lift.

Mummified Hand+33.8%15 runsOrnamental Fan+28.2%31 runsLee's Waffle+27.4%17 runsLantern+26.6%62 runsCandelabra+26.5%41 runsVajra+25.7%58 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 32.6% 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 Test Subject Boss (5.4%), Kaiser Crab Boss (5.4%), and Queen Boss (4.5%).

• Test Subject Boss5.4% of runs
• Kaiser Crab Boss5.4% of runs
• Queen Boss4.5% of runs
• The Insatiable Boss3.8% of runs
• Knowledge Demon Boss3.5% of runs

See Also

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