ArsenalPower
Whenever you create a card, gain 1 Strength.
Is Arsenal good in Slay the Spire 2?
Arsenal is a rare Regent power in Slay the Spire 2. In combat it resolves as: Whenever you create a card, gain 1 Strength. It ranks among the strongest cards its class can draft right now, earning a spot at S tier in our Slay the Spire 2 card tier list.
Across 7 recorded runs, decks running it win 42.9% of the time, comfortably clear of the 12.6% average, by 30.2%. It’s a more selective pick, turning up in just 1.4% of decks that could run it. Regent players keep it in 4.2% 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 Child of the Stars — together they post a +32.1% swing in win rate. It also has strong chemistry with the relic Divine Right, which moves its win rate by -9.5%. At 1 energy, it’s upgraded in 85.7% of runs and usually joins the deck around floor 18.
That’s 3 wins, 4 deaths, and 0 abandoned runs with it in the deck. Read on for Arsenal’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Regent run.
Arsenal Win Rate & Pick Rate
Arsenal’s 42.9% win rate clears the 12.6% all-deck average by 30.2%, the gap charted below.
Run Outcomes with Arsenal
Arsenal has 3 wins and 4 losses over 7 tracked runs (42.9% won); abandoned runs count as losses.
- Wins 42.9%
- Losses 57.1%
Best Cards to Pair with Arsenal
Ranked by win-rate lift, Arsenal performs best alongside Child of the Stars (+32.1%), Solar Strike (+32.1%), and Gather Light (+23.8%).
Child of the Stars4 runs
Solar Strike4 runs
Gather Light3 runs
Particle Wall3 runs
Manifest Authority3 runs
Pillar of Creation3 runsBased on small co-occurring samples — treat these as early signals, not final verdicts.
Arsenal Win Rate by Class
Arsenal is drafted only by the Regent, where it holds a 42.9% win rate across 7 runs.
The Regentappears in 4.2% of its runs (7 tracked)Best Relics for Arsenal
Arsenal pairs best with the relics Divine Right (-9.5%), Cursed Pearl (-9.5%), and Potion Belt (-9.5%), ranked by win-rate lift.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Arsenal Card Details
Arsenal is a rare power costing 1 energy; it’s upgraded in 85.7% of runs and usually picked up by floor 18.
Whenever you create a card, gain 1 Strength.
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Arsenal – Frequently Asked Questions
Is Arsenal good in Slay the Spire 2?
Across 7 tracked runs, Arsenal has a 42.9% win rate — +30.2% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Arsenal do in Slay the Spire 2?
Arsenal costs 1 energy. Whenever you create a card, gain 1 Strength.
What class is Arsenal in Slay the Spire 2?
Arsenal is a Rare Regent Power.
Is Arsenal worth upgrading in Slay the Spire 2?
Arsenal can be upgraded at a rest site to improve its effect.
What is the best relic for Arsenal?
In tracked runs, Arsenal has performed best alongside Divine Right, which lifts its win rate by -9.5% over 6 runs together.
See Also
Compare Arsenal with the rest of the best Slay the Spire 2 cards, relics, and classes below.