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

Over 1998 tracked runs the win rate of decks holding it sits at 37.6%, 23.8% ahead of the 13.8% all-run baseline. It sees lighter play, carried in only 9.6% of runs. It does its best work in the hands of the Regent, who post a 44.4% win rate with it. Within Regent runs specifically, it’s carried 9.1% of the time.

Its standout card pairing is Beat Down, which lifts the relic’s win rate by +49.0% when both are in play. It also works nicely with Secret Weapon, good for a +42.4% win-rate change. It typically enters the deck near floor 22. As a common relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 747 ended in victory while 1237 fell to a defeat. Its most common run-ender is Queen Boss, finishing 6.5% 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.

Pick or Skip: Bag of Marbles

Players take Bag of Marbles in 62.0% of the 3267 offers it appears in; those runs win 37.7% against 28.3% for runs that passed, a pick lift of +9.4% over 2003 decided runs.

Taken 2027 times out of 3267 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 Bag of Marbles

The cards that gain the most from carrying Bag of Marbles are Beat Down (+49.0%), Secret Weapon (+42.4%), and Alchemize (+41.3%), each shown with its win-rate swing.

Beat Down+49.0%16 runsSecret Weapon+42.4%21 runsAlchemize+41.3%20 runsSneaky+40.1%18 runsSecret Technique+40.1%19 runsSalvo+38.8%18 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 Regent (44.4%), Silent (42.1%), and Necrobinder (38.4%).

The Regent44.4%300 runsThe Silent42.1%472 runsThe Necrobinder38.4%354 runsThe Ironclad35.1%485 runsThe Defect28.6%371 runs

Bag of Marbles Details

Carried in 9.6% of runs, Bag of Marbles is a common relic typically acquired near floor 22.

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 Queen Boss (6.5%), Test Subject Boss (6.2%), and Kaiser Crab Boss (4.8%) — the share of its runs each accounts for is shown.

• Queen Boss6.5% of runs
• Test Subject Boss6.2% of runs
• Kaiser Crab Boss4.8% of runs
• Knowledge Demon Boss4.7% of runs
• Aeonglass Boss4.7% of runs

See Also

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