Spur•Skill

Is Spur good in Slay the Spire 2?

Spur is an uncommon Necrobinder skill in Slay the Spire 2. In combat it resolves as: Summon 3. Osty heals 5 HP. It’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 19 recorded runs, decks running it win 17.6% of the time, comfortably clear of the 12.6% average, by 5.0%. It’s a more selective pick, turning up in just 3.7% of decks that could run it. Necrobinder players keep it in 11.1% 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 Hang — together they post a +82.3% swing in win rate. It also has strong chemistry with the relic Gorget, which moves its win rate by +57.4%. At 1 energy, it’s upgraded in 19.1% of runs and usually joins the deck around floor 12.

Upgraded, it gains +2 Summon, +2 Heal, which is why so many decks invest a rest-site upgrade in it. That’s 3 wins, 14 deaths, and 2 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Infested Prisms Elite, which closes out 10.5% of its appearances. Read on for Spur’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Necrobinder run.

Best Cards to Pair with Spur

Ranked by win-rate lift, Spur performs best alongside Hang (+82.3%), Seance (+49.0%), and Afterlife (+32.4%).

Hang+82.3%3 runsSeance+49.0%3 runsAfterlife+32.4%5 runsDebilitate+32.4%3 runsCalcify+15.7%3 runsDevour Life+15.7%3 runs

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

Spur Win Rate by Class

Spur is drafted only by the Necrobinder, where it holds a 17.6% win rate across 19 runs.

The Necrobinderappears in 11.1% of its runs (19 tracked)

Best Relics for Spur

Spur pairs best with the relics Gorget (+57.4%), Gremlin Horn (+15.7%), and Stone Cracker (+15.7%), ranked by win-rate lift.

Gorget+57.4%4 runsGremlin Horn+15.7%3 runsStone Cracker+15.7%3 runsWar Paint+15.7%3 runsCentennial Puzzle+15.7%3 runsPen Nib+2.4%5 runs

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

Spur Card Details

Spur is an uncommon skill costing 1 energy; it’s upgraded in 19.1% of runs and usually picked up by floor 12.

Summon 3. Osty heals 5 HP.

Upgrade: +2 Summon, +2 Heal

What Ends Runs with Spur

Spur’s most common run-enders are Infested Prisms Elite (10.5%), Doormaker Boss (10.5%), and The Kin Boss (10.5%).

• Infested Prisms Elite10.5% of runs
• Doormaker Boss10.5% of runs
• The Kin Boss10.5% of runs

See Also

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