ProtectorAttack
Osty deals 10 damage. Deals additional damage equal to Osty's Max HP.
Is Protector good in Slay the Spire 2?
Protector is an ancient Necrobinder attack in Slay the Spire 2. In combat it resolves as: Osty deals 10 damage. Deals additional damage equal to Osty's Max HP. It ranks among the strongest cards its class can draft right now, earning a spot at S tier in our Slay the Spire 2 card tier list.
Across 3 recorded runs, decks running it win 66.7% of the time, comfortably clear of the 12.6% average, by 54.0%. It’s a more selective pick, turning up in just 0.6% of decks that could run it. Necrobinder players keep it in 1.7% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.0 times in the decks that take it.
It performs best next to Bodyguard — together they post a 0.0% swing in win rate. It also has strong chemistry with the relic Bound Phylactery, which moves its win rate by 0.0%. At 1 energy, it’s upgraded in 66.7% of runs and usually joins the deck around floor 18.
Upgraded, it gains +5 CalculationBase, -1 EnergyCost, which is why so many decks invest a rest-site upgrade in it. That’s 2 wins, 1 deaths, and 0 abandoned runs with it in the deck. Read on for Protector’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Necrobinder run.
Protector Win Rate & Pick Rate
Protector’s 66.7% win rate clears the 12.6% all-deck average by 54.0%, the gap charted below.
Run Outcomes with Protector
Protector has 2 wins and 1 losses over 3 tracked runs (66.7% won); abandoned runs count as losses.
- Wins 66.7%
- Losses 33.3%
Protector Win Rate by Class
Protector is drafted only by the Necrobinder, where it holds a 66.7% win rate across 3 runs.
The Necrobinderappears in 1.7% of its runs (3 tracked)Best Relics for Protector
Protector pairs best with the relics Bound Phylactery (0.0%) and Archaic Tooth (0.0%), ranked by win-rate lift.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Protector Card Details
Protector is an ancient attack costing 1 energy; it’s upgraded in 66.7% of runs and usually picked up by floor 18.
Osty deals 10 damage. Deals additional damage equal to Osty's Max HP.
Upgrade: +5 CalculationBase, -1 EnergyCost
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Protector – Frequently Asked Questions
Is Protector good in Slay the Spire 2?
Across 3 tracked runs, Protector has a 66.7% win rate — +54.0% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Protector do in Slay the Spire 2?
Protector costs 1 energy. Osty deals 10 damage. Deals additional damage equal to Osty's Max HP.
What class is Protector in Slay the Spire 2?
Protector is an Ancient Necrobinder Attack.
Is Protector worth upgrading in Slay the Spire 2?
Players upgrade Protector in 66.7% of runs. Upgrading it grants +5 CalculationBase, -1 EnergyCost.
What is the best relic for Protector?
In tracked runs, Protector has performed best alongside Bound Phylactery, which lifts its win rate by 0.0% over 3 runs together.
See Also
Compare Protector with the rest of the best Slay the Spire 2 cards, relics, and classes below.