Demonic Shield
Win Rate
43.1%
Pick Rate
0.6%
Δ vs Avg
+28.9

Demonic Shield Skill

Uncommon
Type
Skill
Rarity
Uncommon
Cost
0
Class
Ironclad
Methodology
Data Methodology

Lose 1 HP. Give another player Block equal to your Block.

Is Demonic Shield good in Slay the Spire 2?

In Slay the Spire 2, Demonic Shield is an uncommon skill from the Ironclad card pool. Its effect: Lose 1 HP. Give another player Block equal to your Block. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 161 tracked runs its win rate sits at 43.1%, 28.9% ahead of the 14.3% all-deck baseline. It sees niche play, included in only 0.6% of eligible runs. When it is actually offered players take it 22.6% of the time, and that looks correct: those runs win 39.0% against 33.9% for runs that passed, a +4.7% pick lift over 136 decided runs. Within Ironclad runs it’s drafted 2.7% 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 Mad Science, which lifts its win rate by +22.3% when the two share a deck. On the relic side, Horn Cleat is its standout companion, worth a +25.4% win-rate swing alongside it. It costs 0 energy, gets upgraded 43.6% of the time, and tends to be picked up near floor 19.

Of the runs that drafted it, 69 ended in victory against 91 deaths and 1 abandons. Its most common run-ender is Test Subject Boss, finishing 8.7% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Demonic Shield fits a Ironclad deck.

Demonic Shield Win Rate & Pick Rate

At a 43.1% win rate, Demonic Shield runs 28.9% ahead of the 14.3% all-deck baseline — the bars below put the two side by side.

Win rate43.1%
Average deck14.3%
+28.9% vs averagePick rate: 0.6%161 runs

Run Outcomes with Demonic Shield

Across the 161 tracked runs that drafted Demonic Shield, 69 ended in a win and 92 in a loss — a 42.9% win share, counting abandons as losses.

  • Wins 42.9%
  • Losses 57.1%

Pick or Skip: Demonic Shield

Players take Demonic Shield in 22.6% of the 638 offers it appears in; those runs win 39.0% against 33.9% for runs that passed, a pick lift of +4.7% over 136 decided runs.

Pick rate when offered22.6%638 offers

Taken 144 times out of 638 offers.

Win rate when picked39.0%136 runs
Win rate when skipped33.9%336 runs
+5.0% vs skippingPick lift: +4.7%Sample OK

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 Demonic Shield

Of the 3 pickup windows recorded for Demonic Shield, Act 3 is the best: 51.6% across 31 runs.

Act 135.4%66 runs
Act 245.2%62 runs
Act 351.6%31 runs

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

Best Cards to Pair with Demonic Shield

Demonic Shield’s strongest card pairings so far are Mad Science (+22.3%), Tear Asunder (+22.1%), and Burning Pact (+17.6%), each shown with the win-rate lift it adds.

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

Demonic Shield Win Rate by Class

Exclusive to the Ironclad, Demonic Shield posts a 43.6% win rate over 157 tracked runs.

The IroncladThe Ironcladappears in 2.7% of its runs (157 tracked)

Best Relics for Demonic Shield

The relics that swing Demonic Shield’s win rate the most are Horn Cleat (+25.4%), War Paint (+24.3%), and Regal Pillow (+20.0%), with each lift shown.

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

Demonic Shield Card Details

A 0-energy uncommon skill, Demonic Shield is upgraded 43.6% of the time and tends to enter the deck around floor 19.

Lose 1 HP. Give another player Block equal to your Block.

Cost0
TypeSkill
RarityUncommon
ClassIronclad
Avg copies / deck1.1
Upgraded43.6%
Typical pickup floor19

What Ends Runs with Demonic Shield

Runs holding Demonic Shield end most often against Test Subject Boss (8.7%), Kaiser Crab Boss (7.5%), and Knowledge Demon Boss (6.8%) — the share of its runs each accounts for is shown.

  • Test Subject Boss8.7% of runs
  • Kaiser Crab Boss7.5% of runs
  • Knowledge Demon Boss6.8% of runs
  • Decimillipede Elite5.0% of runs
  • Queen Boss3.7% of runs
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Demonic Shield – Frequently Asked Questions

Is Demonic Shield good in Slay the Spire 2?

Across 161 tracked runs, Demonic Shield has a 43.1% win rate — +28.9% above the average deck. Win rate reflects how often runs that include the card end in victory.

What does Demonic Shield do in Slay the Spire 2?

Demonic Shield costs 0 energy. Lose 1 HP. Give another player Block equal to your Block.

What class is Demonic Shield in Slay the Spire 2?

Demonic Shield is an Uncommon Ironclad Skill.

Is Demonic Shield worth upgrading in Slay the Spire 2?

Demonic Shield can be upgraded at a rest site to improve its effect.

What is the best relic for Demonic Shield?

In tracked runs, Demonic Shield has performed best alongside Horn Cleat, which lifts its win rate by +25.4% over 24 runs together.

Should I take Demonic Shield when it is offered?

Players take Demonic Shield in 22.6% of its 638 recorded offers. Runs that picked it win 39.0% (136 decided runs) against 33.9% for runs that skipped it (336 decided runs) — a +5.0% difference, and a +4.7% pick lift once sample size is accounted for.

See Also

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