Hemokinesis
Win Rate
20.6%
Pick Rate
1.5%
Δ vs Avg
+6.7

Hemokinesis Attack

Uncommon
Type
Attack
Rarity
Uncommon
Cost
1
Class
Ironclad
Methodology
Data Methodology

Lose 2 HP. Deal 15 damage.

Is Hemokinesis good in Slay the Spire 2?

In Slay the Spire 2, Hemokinesis is an uncommon attack from the Ironclad card pool. Its effect: Lose 2 HP. Deal 15 damage. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 320 tracked runs its win rate sits at 20.6%, 6.7% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 1.5% of eligible runs. Offer data argues the other way: taken 15.4% of the time it is shown, runs that picked it win 20.5% against 23.3% for runs that passed — a -2.7% pick lift across 268 decided runs. Within Ironclad runs it’s drafted 6.9% 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 +31.4% when the two share a deck. On the relic side, Centennial Puzzle is its standout companion, worth a +27.0% win-rate swing alongside it. It costs 1 energy, gets upgraded 24.6% of the time, and tends to be picked up near floor 14.

Upgrading the card adds +5 Damage to its stat line. Of the runs that drafted it, 65 ended in victory against 251 deaths and 4 abandons. Its most common run-ender is Kaiser Crab Boss, finishing 6.9% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Hemokinesis fits a Ironclad deck.

Hemokinesis Win Rate & Pick Rate

At a 20.6% win rate, Hemokinesis runs 6.7% ahead of the 13.8% all-deck baseline — the bars below put the two side by side.

Win rate20.6%
Average deck13.8%
+6.7% vs averagePick rate: 1.5%320 runs

Run Outcomes with Hemokinesis

Across the 320 tracked runs that drafted Hemokinesis, 65 ended in a win and 255 in a loss — a 20.3% win share, counting abandons as losses.

  • Wins 20.3%
  • Losses 79.7%

Pick or Skip: Hemokinesis

Players take Hemokinesis in 15.4% of the 1838 offers it appears in; those runs win 20.5% against 23.3% for runs that passed, a pick lift of -2.7% over 268 decided runs.

Pick rate when offered15.4%1838 offers

Taken 284 times out of 1838 offers.

Win rate when picked20.5%268 runs
Win rate when skipped23.3%1119 runs
-2.8% vs skippingPick lift: -2.7%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 Hemokinesis

Of the 4 pickup windows recorded for Hemokinesis, Act 3 is the best: 53.6% across 28 runs.

Starting deckNot enough data—5 runs
Act 115.8%200 runs
Act 221.8%87 runs
Act 353.6%28 runs

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

Best Cards to Pair with Hemokinesis

Hemokinesis’s strongest card pairings so far are Mad Science (+31.4%), Drum of Battle (+20.2%), and Crimson Mantle (+18.0%), each shown with the win-rate lift it adds.

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

Hemokinesis Win Rate by Class

Exclusive to the Ironclad, Hemokinesis posts a 20.4% win rate over 318 tracked runs.

The IroncladThe Ironcladappears in 6.9% of its runs (318 tracked)

Best Relics for Hemokinesis

The relics that swing Hemokinesis’s win rate the most are Centennial Puzzle (+27.0%), The Chosen Cheese (+22.0%), and Whetstone (+20.7%), with each lift shown.

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

Hemokinesis Card Details

A 1-energy uncommon attack, Hemokinesis is upgraded 24.6% of the time and tends to enter the deck around floor 14.

Lose 2 HP. Deal 15 damage.

Cost1
TypeAttack
RarityUncommon
ClassIronclad
Avg copies / deck1.1
Upgraded24.6%
Typical pickup floor14

Upgrade: +5 Damage

What Ends Runs with Hemokinesis

Runs holding Hemokinesis end most often against Kaiser Crab Boss (6.9%), Test Subject Boss (5.6%), and The Insatiable Boss (4.1%) — the share of its runs each accounts for is shown.

  • Kaiser Crab Boss6.9% of runs
  • Test Subject Boss5.6% of runs
  • The Insatiable Boss4.1% of runs
  • Infested Prisms Elite4.1% of runs
  • Queen Boss4.1% of runs
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Hemokinesis – Frequently Asked Questions

Is Hemokinesis good in Slay the Spire 2?

Across 320 tracked runs, Hemokinesis has a 20.6% win rate — +6.7% above the average deck. Win rate reflects how often runs that include the card end in victory.

What does Hemokinesis do in Slay the Spire 2?

Hemokinesis costs 1 energy. Lose 2 HP. Deal 15 damage.

What class is Hemokinesis in Slay the Spire 2?

Hemokinesis is an Uncommon Ironclad Attack.

Is Hemokinesis worth upgrading in Slay the Spire 2?

Players upgrade Hemokinesis in 24.6% of runs. Upgrading it grants +5 Damage.

What is the best relic for Hemokinesis?

In tracked runs, Hemokinesis has performed best alongside Centennial Puzzle, which lifts its win rate by +27.0% over 51 runs together.

Should I take Hemokinesis when it is offered?

Players take Hemokinesis in 15.4% of its 1838 recorded offers. Runs that picked it win 20.5% (268 decided runs) against 23.3% for runs that skipped it (1119 decided runs) — a -2.8% difference, and a -2.7% pick lift once sample size is accounted for.

See Also

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