Glasswork•Skill

Is Glasswork good in Slay the Spire 2?

In Slay the Spire 2, Glasswork is an uncommon skill from the Defect card pool. Its effect: Gain 5 Block. Channel 1 Glass. The data flags it as a weaker pick, settling at F tier — usually one to pass on unless your deck specifically wants it.

Over 75 tracked runs its win rate sits at 14.1%, 4.9% short of the 18.9% all-deck baseline. It sees niche play, included in only 2.0% of eligible runs. Within Defect runs it’s drafted 12.8% 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 Reboot, which lifts its win rate by +19.7% when the two share a deck. On the relic side, Lord's Parasol is its standout companion, worth a +19.8% win-rate swing alongside it. It costs 1 energy, gets upgraded 21.4% of the time, and tends to be picked up near floor 15.

Upgrading the card adds +3 Block to its stat line. Of the runs that drafted it, 9 ended in victory against 55 deaths and 11 abandons. Its most common run-ender is Queen Boss, finishing 16.0% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Glasswork fits a Defect deck.

Best Cards to Pair with Glasswork

Glasswork’s strongest card pairings so far are Reboot (+19.7%), Machine Learning (+14.4%), and Defragment (+13.5%), each shown with the win-rate lift it adds.

Reboot+19.7%9 runsMachine Learning+14.4%11 runsDefragment+13.5%7 runsThunder+12.6%18 runsGold Axe+12.1%3 runsCold Snap+10.6%17 runs

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

Glasswork Win Rate by Class

Exclusive to the Defect, Glasswork posts a 14.1% win rate over 75 tracked runs.

The Defectappears in 12.8% of its runs (75 tracked)

Best Relics for Glasswork

The relics that swing Glasswork’s win rate the most are Lord's Parasol (+19.8%), Blood Vial (+19.6%), and Lizard Tail (+15.3%), with each lift shown.

Lord's Parasol+19.8%3 runsBlood Vial+19.6%17 runsLizard Tail+15.3%5 runsRed Mask+15.3%6 runsFragrant Mushroom+14.3%3 runsBronze Scales+13.5%6 runs

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

Glasswork Card Details

A 1-energy uncommon skill, Glasswork is upgraded 21.4% of the time and tends to enter the deck around floor 15.

Gain 5 Block. Channel 1 Glass.

Upgrade: +3 Block

What Ends Runs with Glasswork

Runs holding Glasswork end most often against Queen Boss (16.0%), Knowledge Demon Boss (5.3%), and Test Subject Boss (5.3%) — the share of its runs each accounts for is shown.

• Queen Boss16.0% of runs
• Knowledge Demon Boss5.3% of runs
• Test Subject Boss5.3% of runs
• The Insatiable Boss4.0% of runs
• Decimillipede Elite4.0% of runs

See Also

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