Flame Barrier•Skill

Is Flame Barrier good in Slay the Spire 2?

In Slay the Spire 2, Flame Barrier is an uncommon skill from the Ironclad card pool. Its effect: Gain 12 Block. Whenever you are attacked this turn, deal damage back. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 116 tracked runs its win rate sits at 27.4%, 8.5% ahead of the 18.9% all-deck baseline. It sees niche play, included in only 3.1% of eligible runs. Within Defect runs it’s drafted 0.3% 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 Battle Trance, which lifts its win rate by +21.8% when the two share a deck. On the relic side, Venerable Tea Set is its standout companion, worth a +23.4% win-rate swing alongside it. It costs 2 energy, gets upgraded 39.7% of the time, and tends to be picked up near floor 14.

Upgrading the card adds +4 Block to its stat line. Of the runs that drafted it, 28 ended in victory against 74 deaths and 14 abandons. Its most common run-ender is The Insatiable Boss, finishing 8.6% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Flame Barrier fits a Ironclad deck.

Best Cards to Pair with Flame Barrier

Flame Barrier’s strongest card pairings so far are Battle Trance (+21.8%), Ashen Strike (+18.9%), and Eternal Armor (+16.7%), each shown with the win-rate lift it adds.

Battle Trance+21.8%28 runsAshen Strike+18.9%11 runsEternal Armor+16.7%3 runsMaster of Strategy+16.7%3 runsStoke+16.7%3 runsNot Yet+16.3%11 runs

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

Flame Barrier Win Rate by Class

Of the 2 classes that draft Flame Barrier, it performs best with Defect (50.0%) and Ironclad (27.0%).

The Defect50.0%2 runsThe Ironclad27.0%114 runs

Best Relics for Flame Barrier

The relics that swing Flame Barrier’s win rate the most are Venerable Tea Set (+23.4%), Oddly Smooth Stone (+21.3%), and Intimidating Helmet (+18.1%), with each lift shown.

Venerable Tea Set+23.4%20 runsOddly Smooth Stone+21.3%10 runsIntimidating Helmet+18.1%7 runsFresnel Lens+18.1%7 runsBag of Marbles+17.7%16 runsSword of Jade+17.5%5 runs

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

Flame Barrier Card Details

A 2-energy uncommon skill, Flame Barrier is upgraded 39.7% of the time and tends to enter the deck around floor 14.

Gain 12 Block. Whenever you are attacked this turn, deal damage back.

Upgrade: +4 Block

What Ends Runs with Flame Barrier

Runs holding Flame Barrier end most often against The Insatiable Boss (8.6%), Kaiser Crab Boss (6.9%), and Knowledge Demon Boss (6.9%) — the share of its runs each accounts for is shown.

• The Insatiable Boss8.6% of runs
• Kaiser Crab Boss6.9% of runs
• Knowledge Demon Boss6.9% of runs
• Queen Boss6.0% of runs
• Decimillipede Elite4.3% of runs

See Also

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