Whetstone•Relic

Is Whetstone good in Slay the Spire 2?

In Slay the Spire 2, Whetstone is a common relic you can pick up on your climb. Its effect: Upon pickup, Upgrade random Attacks. The data marks it as a weaker relic, settling at D tier — rarely a run-defining grab.

Over 32 tracked runs the win rate of decks holding it sits at 23.3%, 10.7% ahead of the 12.6% all-run baseline. It sees lighter play, carried in only 6.2% of runs. It does its best work in the hands of the Regent, who post a 27.3% win rate with it. Within Regent runs specifically, it’s carried 7.2% of the time.

Its standout card pairing is Summon Forth, which lifts the relic’s win rate by +51.7% when both are in play. It also works nicely with Spoils of Battle, good for a +51.7% win-rate change. It typically enters the deck near floor 15. As a common relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 7 ended in victory while 23 fell to a defeat. Its most common run-ender is Infested Prisms Elite, finishing 6.3% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Whetstone is worth grabbing.

Best Cards with Whetstone

The cards that gain the most from carrying Whetstone are Summon Forth (+51.7%), Spoils of Battle (+51.7%), and Stardust (+43.3%), each shown with its win-rate swing.

Summon Forth+51.7%4 runsSpoils of Battle+51.7%4 runsStardust+43.3%3 runsSpectrum Shift+43.3%3 runsGlow+43.3%3 runsAfterlife+43.3%3 runs

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

Whetstone Win Rate by Class

Of the 5 classes that carry Whetstone, it performs best with Regent (27.3%), Silent (25.0%), and Defect (25.0%).

The Regent27.3%12 runsThe Silent25.0%5 runsThe Defect25.0%4 runsThe Necrobinder22.2%9 runsThe Ironclad0.0%2 runs

Whetstone Details

Carried in 6.2% of runs, Whetstone is a common relic typically acquired near floor 15.

Upon pickup, Upgrade random Attacks.

What Ends Runs with Whetstone

Runs carrying Whetstone end most often against Infested Prisms Elite (6.3%), Decimillipede Elite (6.3%), and Waterfall Giant Boss (6.3%) — the share of its runs each accounts for is shown.

• Infested Prisms Elite6.3% of runs
• Decimillipede Elite6.3% of runs
• Waterfall Giant Boss6.3% of runs
• The Kin Boss6.3% of runs

See Also

Keep exploring Slay the Spire 2 tier lists and stats below.