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 67 tracked runs its win rate sits at 29.0%, 10.1% ahead of the 19.0% all-deck baseline. It sees niche play, included in only 1.8% of eligible runs. Within Silent runs it’s drafted 6.8% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.2 copies on average.

Its standout pairing so far is Tactician, which lifts its win rate by +23.3% when the two share a deck. On the relic side, Red Mask is its standout companion, worth a +25.5% win-rate swing alongside it. It costs 2 energy, gets upgraded 31.3% of the time, and tends to be picked up near floor 12.

Upgrading the card adds +1 Repeat to its stat line. Of the runs that drafted it, 18 ended in victory against 44 deaths and 5 abandons. Its most common run-ender is Kaiser Crab Boss, finishing 7.5% 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.

Best Cards to Pair with Bouncing Flask

Bouncing Flask’s strongest card pairings so far are Tactician (+23.3%), Follow Through (+20.4%), and Regret (+16.4%), each shown with the win-rate lift it adds.

Tactician+23.3%7 runsFollow Through+20.4%9 runsRegret+16.4%3 runsFlechettes+16.4%4 runsPanache+16.4%3 runsSpeedster+14.1%6 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 29.0% win rate over 67 tracked runs.

The Silentappears in 6.8% of its runs (67 tracked)

Best Relics for Bouncing Flask

The relics that swing Bouncing Flask’s win rate the most are Red Mask (+25.5%), Lasting Candy (+23.3%), and Anchor (+22.7%), with each lift shown.

Red Mask+25.5%11 runsLasting Candy+23.3%7 runsAnchor+22.7%13 runsLantern+22.7%14 runsOddly Smooth Stone+20.4%9 runsNunchaku+20.4%6 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 31.3% of the time and tends to enter the deck around floor 12.

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 (7.5%), Knowledge Demon Boss (6.0%), and Ceremonial Beast Boss (4.5%) — the share of its runs each accounts for is shown.

• Kaiser Crab Boss7.5% of runs
• Knowledge Demon Boss6.0% of runs
• Ceremonial Beast Boss4.5% of runs
• The Insatiable Boss4.5% of runs
• Queen Boss4.5% of runs

See Also

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