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. Performance-wise it’s a steady, unspectacular pick rated C tier overall.

Over 225 tracked runs the win rate of decks holding it sits at 59.1%, 44.8% ahead of the 14.3% all-run baseline. It sees lighter play, carried in only 0.8% of runs. It does its best work in the hands of the Regent, who post a 75.0% win rate with it. Within Regent runs specifically, it’s carried 0.7% of the time.

Its standout card pairing is Know Thy Place, which lifts the relic’s win rate by +35.0% when both are in play. It also works nicely with Cloak of Stars, good for a +27.6% 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, 133 ended in victory while 92 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 13.3% 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.

Pick or Skip: Music Box

Across 225 offers Music Box has a 100.0% pick rate; the 225 runs that took it and 0 that left it are still below the sample floor, so no win rate is shown.

Taken 225 times out of 225 offers.

A win rate is only shown once that side clears the sample floor. Below it you get the run counts and nothing else — a 0% here would be a reporting artefact, not a result.

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 Music Box

The cards that gain the most from carrying Music Box are Know Thy Place (+35.0%), Cloak of Stars (+27.6%), and Glow (+23.2%), each shown with its win-rate swing.

Know Thy Place+35.0%17 runsCloak of Stars+27.6%15 runsGlow+23.2%17 runsVenerate+16.8%29 runsFalling Star+15.9%28 runsAccuracy+15.9%32 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 (75.0%), Necrobinder (65.0%), and Silent (61.0%).

The Regent75.0%32 runsThe Necrobinder65.0%40 runsThe Silent61.0%59 runsThe Ironclad54.2%48 runsThe Defect42.9%42 runs

Music Box Details

Carried in 0.8% 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 (13.3%), Queen Boss (8.9%), and Aeonglass Boss (8.0%) — the share of its runs each accounts for is shown.

• Test Subject Boss13.3% of runs
• Queen Boss8.9% of runs
• Aeonglass Boss8.0% of runs
• Mecha Knight Elite2.2% of runs
• Fabricator Normal1.8% of runs

See Also

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