Toolbox•Relic

Is Toolbox good in Slay the Spire 2?

In Slay the Spire 2, Toolbox is a shop relic you can pick up on your climb. Its effect: At the start of each combat, choose 1 of random Colorless cards and add the chosen card into your Hand. Performance-wise it’s a steady, unspectacular pick rated C tier overall.

Over 36 tracked runs the win rate of decks holding it sits at 40.6%, 21.7% ahead of the 19.0% all-run baseline. It sees lighter play, carried in only 0.9% of runs. It does its best work in the hands of the Silent, who post a 66.7% win rate with it. Within Silent runs specifically, it’s carried 1.2% of the time.

Its standout card pairing is Calculated Gamble, which lifts the relic’s win rate by +59.4% when both are in play. It also works nicely with Knife Trap, good for a +59.4% win-rate change. It typically enters the deck near floor 24. As a shop relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 13 ended in victory while 19 fell to a defeat. Its most common run-ender is Knowledge Demon Boss, finishing 8.3% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Toolbox is worth grabbing.

Best Cards with Toolbox

The cards that gain the most from carrying Toolbox are Calculated Gamble (+59.4%), Knife Trap (+59.4%), and Envenom (+59.4%), each shown with its win-rate swing.

Calculated Gamble+59.4%4 runsKnife Trap+59.4%3 runsEnvenom+59.4%5 runsPhantom Blades+59.4%3 runsReflex+59.4%3 runsMaster of Strategy+59.4%3 runs

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

Toolbox Win Rate by Class

Of the 5 classes that carry Toolbox, it performs best with Silent (66.7%), Defect (33.3%), and Necrobinder (25.0%).

The Silent66.7%12 runsThe Defect33.3%10 runsThe Necrobinder25.0%5 runsThe Regent25.0%4 runsThe Ironclad0.0%5 runs

Toolbox Details

Carried in 0.9% of runs, Toolbox is a shop relic typically acquired near floor 24.

At the start of each combat, choose 1 of random Colorless cards and add the chosen card into your Hand.

What Ends Runs with Toolbox

Runs carrying Toolbox end most often against Knowledge Demon Boss (8.3%), Decimillipede Elite (5.6%), and Queen Boss (5.6%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss8.3% of runs
• Decimillipede Elite5.6% of runs
• Queen Boss5.6% of runs

See Also

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