Razor Tooth•Relic

Is Razor Tooth good in Slay the Spire 2?

In Slay the Spire 2, Razor Tooth is a rare relic you can pick up on your climb. Its effect: Every time you play an Attack or Skill, Upgrade it for the remainder of combat. Right now it’s a high-value grab, sitting at B tier — one of the relics most worth taking.

Over 78 tracked runs the win rate of decks holding it sits at 57.5%, 38.6% ahead of the 19.0% all-run baseline. It sees lighter play, carried in only 2.1% of runs. It does its best work in the hands of the Silent, who post a 76.5% win rate with it. Within Silent runs specifically, it’s carried 2.0% of the time.

Its standout card pairing is Tools of the Trade, which lifts the relic’s win rate by +42.5% when both are in play. It also works nicely with Blur, good for a +42.5% win-rate change. It typically enters the deck near floor 24. As a rare relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 42 ended in victory while 31 fell to a defeat. Its most common run-ender is Queen Boss, finishing 6.4% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Razor Tooth is worth grabbing.

Best Cards with Razor Tooth

The cards that gain the most from carrying Razor Tooth are Tools of the Trade (+42.5%), Blur (+42.5%), and Ricochet (+42.5%), each shown with its win-rate swing.

Tools of the Trade+42.5%4 runsBlur+42.5%7 runsRicochet+42.5%3 runsBlade of Ink+42.5%3 runsBouncing Flask+42.5%3 runsFootwork+42.5%5 runs

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

Razor Tooth Win Rate by Class

Of the 5 classes that carry Razor Tooth, it performs best with Silent (76.5%), Ironclad (71.4%), and Necrobinder (50.0%).

The Silent76.5%20 runsThe Ironclad71.4%14 runsThe Necrobinder50.0%16 runsThe Regent43.8%18 runsThe Defect40.0%10 runs

Razor Tooth Details

Carried in 2.1% of runs, Razor Tooth is a rare relic typically acquired near floor 24.

Every time you play an Attack or Skill, Upgrade it for the remainder of combat.

What Ends Runs with Razor Tooth

Runs carrying Razor Tooth end most often against Queen Boss (6.4%), Knowledge Demon Boss (3.8%), and Aeonglass Boss (3.8%) — the share of its runs each accounts for is shown.

• Queen Boss6.4% of runs
• Knowledge Demon Boss3.8% of runs
• Aeonglass Boss3.8% of runs
• Entomancer Elite3.8% of runs
• Test Subject Boss2.6% of runs

See Also

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