Reaper Form•Power

Is Reaper Form good in Slay the Spire 2?

Reaper Form is a rare Necrobinder power in Slay the Spire 2. In combat it resolves as: Whenever Attacks deal damage, they also apply that much Doom. It currently underperforms most alternatives, sitting at D tier in our Slay the Spire 2 card rankings.

Across 59 recorded runs, decks running it win 22.6% of the time, comfortably clear of the 18.9% average, by 3.7%. It’s a more selective pick, turning up in just 1.6% of decks that could run it. Regent players keep it in 0.3% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.1 times in the decks that take it.

It performs best next to Neurosurge — together they post a +26.0% swing in win rate. It also has strong chemistry with the relic Pendulum, which moves its win rate by +21.5%. At 3 energy, it’s upgraded in 39.7% of runs and usually joins the deck around floor 18.

That’s 12 wins, 41 deaths, and 6 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Test Subject Boss, which closes out 11.9% of its appearances. Read on for Reaper Form’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Necrobinder run.

Best Cards to Pair with Reaper Form

Ranked by win-rate lift, Reaper Form performs best alongside Neurosurge (+26.0%), Fetch (+16.5%), and Ultimate Defend (+15.0%).

Neurosurge+26.0%9 runsFetch+16.5%6 runsUltimate Defend+15.0%4 runsBury+15.0%4 runsInvoke+14.4%16 runsLethality+14.2%7 runs

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

Reaper Form Win Rate by Class

Reaper Form is played across 3 classes, led by Regent (50.0%), Necrobinder (22.0%), and Defect (0.0%) by win rate.

The Regent50.0%2 runsThe Necrobinder22.0%56 runsThe Defect0.0%1 runs

Best Relics for Reaper Form

Reaper Form pairs best with the relics Pendulum (+21.5%), Candelabra (+19.1%), and Akabeko (+19.1%), ranked by win-rate lift.

Pendulum+21.5%12 runsCandelabra+19.1%5 runsAkabeko+19.1%5 runsPen Nib+16.5%6 runsOddly Smooth Stone+16.5%8 runsSword of Jade+15.0%4 runs

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

Reaper Form Card Details

Reaper Form is a rare power costing 3 energy; it’s upgraded in 39.7% of runs and usually picked up by floor 18.

Whenever Attacks deal damage, they also apply that much Doom.

What Ends Runs with Reaper Form

Reaper Form’s most common run-enders are Test Subject Boss (11.9%), Knowledge Demon Boss (10.2%), and Infested Prisms Elite (8.5%).

• Test Subject Boss11.9% of runs
• Knowledge Demon Boss10.2% of runs
• Infested Prisms Elite8.5% of runs
• Slumbering Beetle Normal5.1% of runs
• Entomancer Elite5.1% of runs

See Also

Compare Reaper Form with the rest of the best Slay the Spire 2 cards, relics, and classes below.