Helix Drill•Attack

Is Helix Drill good in Slay the Spire 2?

Helix Drill is a rare Defect attack in Slay the Spire 2. In combat it resolves as: Deal 3 damage for each -cost previously spent this turn. It currently underperforms most alternatives, sitting at D tier in our Slay the Spire 2 card rankings.

Across 23 recorded runs, decks running it win 26.1% of the time, comfortably clear of the 18.9% average, by 7.1%. It’s a more selective pick, turning up in just 0.6% of decks that could run it. Defect players keep it in 3.9% 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 Compact — together they post a +18.0% swing in win rate. It also has strong chemistry with the relic Strike Dummy, which moves its win rate by +18.0%. At 0 energy, it’s upgraded in 28.0% of runs and usually joins the deck around floor 16.

Upgraded, it gains +2 Damage, which is why so many decks invest a rest-site upgrade in it. That’s 6 wins, 17 deaths, and 0 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Decimillipede Elite, which closes out 17.4% of its appearances. Read on for Helix Drill’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Defect run.

Best Cards to Pair with Helix Drill

Ranked by win-rate lift, Helix Drill performs best alongside Compact (+18.0%), TURBO (+14.0%), and Capacitor (+12.8%).

Compact+18.0%5 runsTURBO+14.0%9 runsCapacitor+12.8%7 runsSquash+11.3%5 runsSkim+11.3%5 runsCoolant+9.4%3 runs

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

Helix Drill Win Rate by Class

Helix Drill is drafted only by the Defect, where it holds a 26.1% win rate across 23 runs.

The Defectappears in 3.9% of its runs (23 tracked)

Best Relics for Helix Drill

Helix Drill pairs best with the relics Strike Dummy (+18.0%), Red Mask (+17.1%), and Whetstone (+11.3%), ranked by win-rate lift.

Strike Dummy+18.0%5 runsRed Mask+17.1%3 runsWhetstone+11.3%5 runsBag of Marbles+11.3%5 runsIce Cream+9.4%3 runsPendulum+9.4%3 runs

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

Helix Drill Card Details

Helix Drill is a rare attack costing 0 energy; it’s upgraded in 28.0% of runs and usually picked up by floor 16.

Deal 3 damage for each -cost previously spent this turn.

Upgrade: +2 Damage

What Ends Runs with Helix Drill

Helix Drill’s most common run-enders are Decimillipede Elite (17.4%), Kaiser Crab Boss (8.7%), and Entomancer Elite (8.7%).

• Decimillipede Elite17.4% of runs
• Kaiser Crab Boss8.7% of runs
• Entomancer Elite8.7% of runs

See Also

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