SunderAttack
Deal 24 damage. If this kills an enemy, gain Energy.
Is Sunder good in Slay the Spire 2?
In Slay the Spire 2, Sunder is an uncommon attack from the Defect card pool. Its effect: Deal 24 damage. If this kills an enemy, gain Energy. Performance-wise it’s a solid if unspectacular include, rated C tier overall.
Over 5 tracked runs its win rate sits at 20.0%, 7.4% ahead of the 12.6% all-deck baseline. It sees niche play, included in only 1.0% of eligible runs. Within Defect runs it’s drafted 17.9% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.4 copies on average.
Its standout pairing so far is Tempest, which lifts its win rate by +13.3% when the two share a deck. On the relic side, Cracked Core is its standout companion, worth a 0.0% win-rate swing alongside it. It costs 3 energy, gets upgraded 14.3% of the time, and tends to be picked up near floor 10.
Upgrading the card adds +8 Damage to its stat line. Of the runs that drafted it, 1 ended in victory against 4 deaths and 0 abandons. See the synergies, class split, and threats below for the full picture of where Sunder fits a Defect deck.
Sunder Win Rate & Pick Rate
At a 20.0% win rate, Sunder runs 7.4% ahead of the 12.6% all-deck baseline — the bars below put the two side by side.
Run Outcomes with Sunder
Across the 5 tracked runs that drafted Sunder, 1 ended in a win and 4 in a loss — a 20.0% win share, counting abandons as losses.
- Wins 20.0%
- Losses 80.0%
Best Cards to Pair with Sunder
Sunder’s strongest card pairings so far are Tempest (+13.3%), Storm (+13.3%), and Subroutine (+13.3%), each shown with the win-rate lift it adds.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Sunder Win Rate by Class
Exclusive to the Defect, Sunder posts a 20.0% win rate over 5 tracked runs.
The Defectappears in 17.9% of its runs (5 tracked)Best Relics for Sunder
The relics that swing Sunder’s win rate the most are Cracked Core (0.0%), with each lift shown.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Sunder Card Details
A 3-energy uncommon attack, Sunder is upgraded 14.3% of the time and tends to enter the deck around floor 10.
Deal 24 damage. If this kills an enemy, gain Energy.
Upgrade: +8 Damage
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Sunder – Frequently Asked Questions
Is Sunder good in Slay the Spire 2?
Across 5 tracked runs, Sunder has a 20.0% win rate — +7.4% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Sunder do in Slay the Spire 2?
Sunder costs 3 energy. Deal 24 damage. If this kills an enemy, gain Energy.
What class is Sunder in Slay the Spire 2?
Sunder is an Uncommon Defect Attack.
Is Sunder worth upgrading in Slay the Spire 2?
Players upgrade Sunder in 14.3% of runs. Upgrading it grants +8 Damage.
What is the best relic for Sunder?
In tracked runs, Sunder has performed best alongside Cracked Core, which lifts its win rate by 0.0% over 5 runs together.
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.