Bouncing Flask•Skill

Is Bouncing Flask good in Slay the Spire 2?

In Slay the Spire 2, Bouncing Flask is an uncommon skill from the Silent card pool. Its effect: Apply 3 Poison to a random enemy times. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 204 tracked runs its win rate sits at 25.7%, 11.7% ahead of the 14.1% all-deck baseline. It sees niche play, included in only 1.9% of eligible runs. Taken 17.2% of the times it is offered, it lands close to neutral on the pick-versus-skip split: 24.7% for runs that took it against 26.8% for runs that passed, a -1.9% pick lift over 158 decided runs. Within Silent runs it’s drafted 7.8% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.1 copies on average.

Its standout pairing so far is Tactician, which lifts its win rate by +22.1% when the two share a deck. On the relic side, Horn Cleat is its standout companion, worth a +31.4% win-rate swing alongside it. It costs 2 energy, gets upgraded 36.6% of the time, and tends to be picked up near floor 14.

Upgrading the card adds +1 Repeat to its stat line. Of the runs that drafted it, 52 ended in victory against 150 deaths and 2 abandons. Its most common run-ender is Kaiser Crab Boss, finishing 6.4% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Bouncing Flask fits a Silent deck.

Pick or Skip: Bouncing Flask

Players take Bouncing Flask in 17.2% of the 1072 offers it appears in; those runs win 24.7% against 26.8% for runs that passed, a pick lift of -1.9% over 158 decided runs.

Taken 184 times out of 1072 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.

When to Pick Up Bouncing Flask

Of the 4 pickup windows recorded for Bouncing Flask, Act 3 is the best: 47.1% across 17 runs.

Win rate of runs by the act Bouncing Flask entered the deck. Acts that have not reached the sample floor show their run count only.

Best Cards to Pair with Bouncing Flask

Bouncing Flask’s strongest card pairings so far are Tactician (+22.1%), Assassinate (+22.0%), and Blade of Ink (+20.6%), each shown with the win-rate lift it adds.

Tactician+22.1%33 runsAssassinate+22.0%32 runsBlade of Ink+20.6%15 runsWell-Laid Plans+19.5%20 runsSpeedster+18.4%23 runsAfterimage+15.4%23 runs

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

Bouncing Flask Win Rate by Class

Exclusive to the Silent, Bouncing Flask posts a 25.9% win rate over 203 tracked runs.

The Silentappears in 7.8% of its runs (203 tracked)

Best Relics for Bouncing Flask

The relics that swing Bouncing Flask’s win rate the most are Horn Cleat (+31.4%), Eternal Feather (+25.9%), and Happy Flower (+22.4%), with each lift shown.

Horn Cleat+31.4%19 runsEternal Feather+25.9%24 runsHappy Flower+22.4%39 runsSnecko Skull+20.5%28 runsVenerable Tea Set+20.5%29 runsBook of Five Rings+20.1%24 runs

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

Bouncing Flask Card Details

A 2-energy uncommon skill, Bouncing Flask is upgraded 36.6% of the time and tends to enter the deck around floor 14.

Apply 3 Poison to a random enemy times.

Upgrade: +1 Repeat

What Ends Runs with Bouncing Flask

Runs holding Bouncing Flask end most often against Kaiser Crab Boss (6.4%), Test Subject Boss (4.9%), and Aeonglass Boss (4.9%) — the share of its runs each accounts for is shown.

• Kaiser Crab Boss6.4% of runs
• Test Subject Boss4.9% of runs
• Aeonglass Boss4.9% of runs
• Knowledge Demon Boss4.4% of runs
• Queen Boss3.9% of runs

See Also

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