Bag of Marbles•Relic

Is Bag of Marbles good in Slay the Spire 2?

In Slay the Spire 2, Bag of Marbles is a common relic you can pick up on your climb. Its effect: At the start of each combat, apply Vulnerable to ALL enemies. Performance-wise it’s a steady, unspectacular pick rated C tier overall.

Over 43 tracked runs the win rate of decks holding it sits at 36.8%, 24.2% ahead of the 12.6% all-run baseline. It sees lighter play, carried in only 8.3% of runs. It does its best work in the hands of the Silent, who post a 60.0% win rate with it. Within Silent runs specifically, it’s carried 8.7% of the time.

Its standout card pairing is Gamma Blast, which lifts the relic’s win rate by +63.2% when both are in play. It also works nicely with Glow, good for a +63.2% win-rate change. It typically enters the deck near floor 19. As a common relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 14 ended in victory while 24 fell to a defeat. Its most common run-ender is Lagavulin Matriarch Boss, finishing 9.3% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Bag of Marbles is worth grabbing.

Best Cards with Bag of Marbles

The cards that gain the most from carrying Bag of Marbles are Gamma Blast (+63.2%), Glow (+63.2%), and Accelerant (+63.2%), each shown with its win-rate swing.

Gamma Blast+63.2%4 runsGlow+63.2%3 runsAccelerant+63.2%3 runsDagger Throw+63.2%3 runsDying Star+63.2%3 runsMayhem+63.2%4 runs

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

Bag of Marbles Win Rate by Class

Of the 5 classes that carry Bag of Marbles, it performs best with Silent (60.0%), Regent (54.5%), and Defect (50.0%).

The Silent60.0%9 runsThe Regent54.5%11 runsThe Defect50.0%4 runsThe Necrobinder18.2%12 runsThe Ironclad14.3%7 runs

Bag of Marbles Details

Carried in 8.3% of runs, Bag of Marbles is a common relic typically acquired near floor 19.

At the start of each combat, apply Vulnerable to ALL enemies.

What Ends Runs with Bag of Marbles

Runs carrying Bag of Marbles end most often against Lagavulin Matriarch Boss (9.3%), Phrog Parasite Elite (4.7%), and Waterfall Giant Boss (4.7%) — the share of its runs each accounts for is shown.

• Lagavulin Matriarch Boss9.3% of runs
• Phrog Parasite Elite4.7% of runs
• Waterfall Giant Boss4.7% of runs
• The Insatiable Boss4.7% of runs
• Knowledge Demon Boss4.7% of runs

See Also

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