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. The data marks it as a weaker relic, settling at D tier — rarely a run-defining grab.

Over 511 tracked runs the win rate of decks holding it sits at 44.6%, 30.8% ahead of the 13.8% all-run baseline. It sees lighter play, carried in only 2.4% of runs. It does its best work in the hands of the Necrobinder, who post a 55.0% win rate with it. Within Necrobinder runs specifically, it’s carried 2.2% of the time.

Its standout card pairing is Decay, which lifts the relic’s win rate by +31.6% when both are in play. It also works nicely with Right Hand Hand, good for a +30.4% win-rate change. It typically enters the deck near floor 22. As a rare relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 225 ended in victory while 279 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 5.5% 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.

Pick or Skip: Razor Tooth

Players take Razor Tooth in 62.7% of the 820 offers it appears in; those runs win 44.9% against 31.9% for runs that passed, a pick lift of +12.8% over 506 decided runs.

Taken 514 times out of 820 offers.

Pick rate when offered counts offers, not runs: out of every time the game put this in front of a player, how often it was taken. It is not the same number as the share of runs that end up containing it.

Pick lift is the sample-adjusted gap between runs that took the option and runs that passed on it. It is the fair way to rank choices, because raw win rates put the smallest samples on top.

Best Cards with Razor Tooth

The cards that gain the most from carrying Razor Tooth are Decay (+31.6%), Right Hand Hand (+30.4%), and Reanimate (+30.4%), each shown with its win-rate swing.

Decay+31.6%21 runsRight Hand Hand+30.4%16 runsReanimate+30.4%16 runsAccelerant+29.0%21 runsRegret+28.7%15 runsTransfigure+27.6%18 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 Necrobinder (55.0%), Regent (48.4%), and Silent (47.8%).

The Necrobinder55.0%81 runsThe Regent48.4%94 runsThe Silent47.8%113 runsThe Ironclad42.4%120 runsThe Defect31.3%100 runs

Razor Tooth Details

Carried in 2.4% of runs, Razor Tooth is a rare relic typically acquired near floor 22.

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 Test Subject Boss (5.5%), Knowledge Demon Boss (4.7%), and Queen Boss (4.3%) — the share of its runs each accounts for is shown.

• Test Subject Boss5.5% of runs
• Knowledge Demon Boss4.7% of runs
• Queen Boss4.3% of runs
• Kaiser Crab Boss4.1% of runs
• Aeonglass Boss3.7% of runs

See Also

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