War HammerRelic
Whenever you kill an Elite, Upgrade random cards.
Is War Hammer good in Slay the Spire 2?
In Slay the Spire 2, War Hammer is an ancient relic you can pick up on your climb. Its effect: Whenever you kill an Elite, Upgrade random cards. Right now it’s a high-value grab, sitting at S tier — one of the relics most worth taking.
Over 23 tracked runs the win rate of decks holding it sits at 73.9%, 55.0% ahead of the 18.9% all-run baseline. It sees lighter play, carried in only 0.6% of runs. It does its best work in the hands of the Necrobinder, who post a 100.0% win rate with it. Within Necrobinder runs specifically, it’s carried 0.6% of the time.
Its standout card pairing is Unleash, which lifts the relic’s win rate by +26.1% when both are in play. It also works nicely with Bodyguard, good for a +26.1% win-rate change. It typically enters the deck near floor 33. As an ancient relic, how often it’s offered depends on its rarity tier.
Of the runs that carried it, 17 ended in victory while 6 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 8.7% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether War Hammer is worth grabbing.
War Hammer Win Rate & Pick Rate
At a 73.9% win rate, War Hammer runs 55.0% ahead of the 18.9% all-run baseline — the bars below put the two side by side.
Run Outcomes with War Hammer
Across the 23 runs that carried War Hammer, 17 ended in a win and 6 in a loss — a 73.9% win share, counting abandons as losses.
- Wins 73.9%
- Losses 26.1%
Best Cards with War Hammer
The cards that gain the most from carrying War Hammer are Unleash (+26.1%), Bodyguard (+26.1%), and Setup Strike (+26.1%), each shown with its win-rate swing.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
War Hammer Win Rate by Class
Of the 5 classes that carry War Hammer, it performs best with Necrobinder (100.0%), Silent (80.0%), and Ironclad (75.0%).
War Hammer Details
Carried in 0.6% of runs, War Hammer is an ancient relic typically acquired near floor 33.
Whenever you kill an Elite, Upgrade random cards.
What Ends Runs with War Hammer
Runs carrying War Hammer end most often against Test Subject Boss (8.7%) — the share of its runs each accounts for is shown.
- Test Subject Boss8.7% of runs
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War Hammer – Frequently Asked Questions
Is War Hammer good in Slay the Spire 2?
Across 23 tracked runs carrying it, War Hammer wins 73.9% of the time — +55.0% above the average run. Win rate reflects how often runs with the relic end in victory.
What does War Hammer do in Slay the Spire 2?
Whenever you kill an Elite, Upgrade random cards.
How rare is War Hammer in Slay the Spire 2?
War Hammer is an Ancient relic, picked up in 0.6% of tracked runs.
What is the best card to use with War Hammer?
In tracked runs, War Hammer has performed best alongside Unleash, which lifts its win rate by +26.1% over 5 runs together.
Which class is War Hammer best in?
War Hammer has its highest win rate with The Necrobinder (100.0%).
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.