Alchemical Coffer Relic

Is Alchemical Coffer good in Slay the Spire 2?

In Slay the Spire 2, Alchemical Coffer is an ancient relic you can pick up on your climb. Its effect: Upon pickup, gain potion slots filled with random potions. The data marks it as a weaker relic, settling at D tier — rarely a run-defining grab.

Over 99 tracked runs the win rate of decks holding it sits at 29.3%, 16.4% ahead of the 12.9% all-run baseline. It sees lighter play, carried in only 0.7% of runs. It does its best work in the hands of the Ironclad, who post a 47.6% win rate with it. Within Ironclad runs specifically, it’s carried 0.7% of the time.

Its standout card pairing is Strike, which lifts the relic’s win rate by +15.7% when both are in play. It also works nicely with Bash, good for a +15.7% win-rate change. It typically enters the deck near floor 18. As an ancient relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 29 ended in victory while 70 fell to a defeat. Its most common run-ender is Knowledge Demon Boss, finishing 11.1% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Alchemical Coffer is worth grabbing.

Pick or Skip: Alchemical Coffer

Across 99 offers Alchemical Coffer has a 100.0% pick rate; the 99 runs that took it and 0 that left it are still below the sample floor, so no win rate is shown.

Taken 99 times out of 99 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 Alchemical Coffer

The cards that gain the most from carrying Alchemical Coffer are Strike (+15.7%), Bash (+15.7%), and Defend (+15.7%), each shown with its win-rate swing.

Strike+15.7%20 runsBash+15.7%20 runsDefend+15.7%20 runsUnleash+4.0%15 runsBodyguard+4.0%15 runsDefend-2.6%15 runs

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

Alchemical Coffer Win Rate by Class

Of the 5 classes that carry Alchemical Coffer, it performs best with Ironclad (47.6%), Necrobinder (31.3%), and Regent (26.7%).

The Ironclad47.6%21 runsThe Necrobinder31.3%16 runsThe Regent26.7%15 runsThe Silent24.0%25 runsThe Defect15.0%20 runs

Alchemical Coffer Details

Carried in 0.7% of runs, Alchemical Coffer is an ancient relic typically acquired near floor 18.

Upon pickup, gain potion slots filled with random potions.

What Ends Runs with Alchemical Coffer

Runs carrying Alchemical Coffer end most often against Knowledge Demon Boss (11.1%), Kaiser Crab Boss (9.1%), and Test Subject Boss (8.1%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss11.1% of runs
• Kaiser Crab Boss9.1% of runs
• Test Subject Boss8.1% of runs
• Decimillipede Elite7.1% of runs
• The Insatiable Boss4.0% of runs

See Also

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