Music Box•Relic

Is Music Box good in Slay the Spire 2?

In Slay the Spire 2, Music Box is an ancient relic you can pick up on your climb. Its effect: Create an Ethereal copy of the first Attack you play each turn. Right now it’s a high-value grab, sitting at S tier — one of the relics most worth taking.

Over 25 tracked runs the win rate of decks holding it sits at 62.5%, 43.5% ahead of the 19.0% all-run baseline. It sees lighter play, carried in only 0.7% of runs. It does its best work in the hands of the Regent, who post a 100.0% win rate with it. Within Regent runs specifically, it’s carried 0.3% of the time.

Its standout card pairing is Pommel Strike, which lifts the relic’s win rate by +37.5% when both are in play. It also works nicely with Iron Wave, good for a +37.5% 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, 15 ended in victory while 9 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 16.0% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Music Box is worth grabbing.

Best Cards with Music Box

The cards that gain the most from carrying Music Box are Pommel Strike (+37.5%), Iron Wave (+37.5%), and Tracking (+37.5%), each shown with its win-rate swing.

Pommel Strike+37.5%3 runsIron Wave+37.5%3 runsTracking+37.5%3 runsFan of Knives+37.5%3 runsStorm of Steel+37.5%3 runsHellraiser+37.5%3 runs

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

Music Box Win Rate by Class

Of the 5 classes that carry Music Box, it performs best with Regent (100.0%), Ironclad (83.3%), and Silent (63.6%).

The Regent100.0%2 runsThe Ironclad83.3%6 runsThe Silent63.6%11 runsThe Defect33.3%3 runsThe Necrobinder33.3%3 runs

Music Box Details

Carried in 0.7% of runs, Music Box is an ancient relic typically acquired near floor 33.

Create an Ethereal copy of the first Attack you play each turn.

What Ends Runs with Music Box

Runs carrying Music Box end most often against Test Subject Boss (16.0%) and Queen Boss (8.0%) — the share of its runs each accounts for is shown.

• Test Subject Boss16.0% of runs
• Queen Boss8.0% of runs

See Also

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