ProwessPower
Gain 1 Strength. Gain 1 Dexterity.
Is Prowess good in Slay the Spire 2?
In Slay the Spire 2, Prowess is an uncommon power from the Colorless card pool. Its effect: Gain 1 Strength. Gain 1 Dexterity. Right now it’s a premium pick that sits at B tier — one of the better cards you can add to a deck this run.
Over 3 tracked runs its win rate sits at 33.3%, 20.7% ahead of the 12.6% all-deck baseline. It sees niche play, included in only 0.6% of eligible runs. Within Regent runs it’s drafted 1.8% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.0 copies on average.
Its standout pairing so far is Ascender's Bane, which lifts its win rate by 0.0% when the two share a deck. On the relic side, Divine Right is its standout companion, worth a 0.0% win-rate swing alongside it. It costs 1 energy, gets upgraded 100.0% of the time, and tends to be picked up near floor 13.
Upgrading the card adds +1 Dexterity, +1 Strength to its stat line. Of the runs that drafted it, 1 ended in victory against 2 deaths and 0 abandons. See the synergies, class split, and threats below for the full picture of where Prowess fits a Colorless deck.
Prowess Win Rate & Pick Rate
At a 33.3% win rate, Prowess runs 20.7% ahead of the 12.6% all-deck baseline — the bars below put the two side by side.
Run Outcomes with Prowess
Across the 3 tracked runs that drafted Prowess, 1 ended in a win and 2 in a loss — a 33.3% win share, counting abandons as losses.
- Wins 33.3%
- Losses 66.7%
Best Cards to Pair with Prowess
Prowess’s strongest card pairings so far are Ascender's Bane (0.0%), Black Hole (0.0%), and Defend (0.0%), each shown with the win-rate lift it adds.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Prowess Win Rate by Class
Exclusive to the Regent, Prowess posts a 33.3% win rate over 3 tracked runs.
The Regentappears in 1.8% of its runs (3 tracked)Best Relics for Prowess
The relics that swing Prowess’s win rate the most are Divine Right (0.0%), with each lift shown.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Prowess Card Details
A 1-energy uncommon power, Prowess is upgraded 100.0% of the time and tends to enter the deck around floor 13.
Gain 1 Strength. Gain 1 Dexterity.
Upgrade: +1 Dexterity, +1 Strength
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Prowess – Frequently Asked Questions
Is Prowess good in Slay the Spire 2?
Across 3 tracked runs, Prowess has a 33.3% win rate — +20.7% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Prowess do in Slay the Spire 2?
Prowess costs 1 energy. Gain 1 Strength. Gain 1 Dexterity.
What class is Prowess in Slay the Spire 2?
Prowess is an Uncommon Colorless Power.
Is Prowess worth upgrading in Slay the Spire 2?
Players upgrade Prowess in 100.0% of runs. Upgrading it grants +1 Dexterity, +1 Strength.
What is the best relic for Prowess?
In tracked runs, Prowess has performed best alongside Divine Right, which lifts its win rate by 0.0% over 3 runs together.
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.