Bag of Preparation Relic

Is Bag of Preparation good in Slay the Spire 2?

Bag of Preparation is a common relic in Slay the Spire 2. While carried, it does the following: At the start of each combat, draw additional cards. It currently underperforms most relics, sitting at D tier in our Slay the Spire 2 relic rankings.

Across 2197 recorded runs, decks carrying it win 37.5% of the time, comfortably clear of the 13.8% average, by 23.6%. It’s a more situational relic, showing up in just 10.5% of runs. The class that gets the most out of it is the Regent, at a 41.9% win rate. Regent players hold onto it in 10.6% of their runs.

It combos especially well with Alchemize, worth a +38.4% win-rate swing together. Another strong card to run with it is Demonic Shield, worth +36.6% to its win rate. On average it’s acquired around floor 21 of a run. Its common rarity shapes how frequently you’ll run into it.

It has 815 run wins against 1359 losses in our tracked data. When runs carrying it end, the most frequent culprit is Test Subject Boss, which closes out 6.7% of them. Read on for Bag of Preparation’s complete card, class, and threat breakdown before you decide to pick it up.

Pick or Skip: Bag of Preparation

Out of 3232 recorded offers Bag of Preparation is taken 68.8% of the time, and taking it is worth +10.8% in pick lift — 37.5% for runs that picked it against 26.7% for runs that skipped, across 2190 decided runs.

Taken 2222 times out of 3232 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 Preparation

Ranked by win-rate lift, the best cards to run with Bag of Preparation are Alchemize (+38.4%), Demonic Shield (+36.6%), and Salvo (+35.8%).

Alchemize+38.4%30 runsDemonic Shield+36.6%27 runsSalvo+35.8%16 runsEntropy+35.8%16 runsCalamity+35.8%16 runsEternal Armor+33.9%23 runs

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

Bag of Preparation Win Rate by Class

Bag of Preparation shows up across 5 classes, led by Regent (41.9%), Necrobinder (41.5%), and Silent (38.3%) by win rate.

The Regent41.9%348 runsThe Necrobinder41.5%378 runsThe Silent38.3%506 runsThe Ironclad37.6%513 runsThe Defect28.6%430 runs

Bag of Preparation Details

Bag of Preparation is a common relic carried in 10.5% of runs and usually picked up around floor 21.

At the start of each combat, draw additional cards.

What Ends Runs with Bag of Preparation

Bag of Preparation’s most common run-enders are Test Subject Boss (6.7%), Queen Boss (5.5%), and Aeonglass Boss (4.9%).

• Test Subject Boss6.7% of runs
• Queen Boss5.5% of runs
• Aeonglass Boss4.9% of runs
• Kaiser Crab Boss4.3% of runs
• Knowledge Demon Boss4.1% of runs

See Also

Compare Bag of Preparation with the rest of the best Slay the Spire 2 relics, cards, and classes below.