FusionSkill
Channel 1 Plasma.
Is Fusion good in Slay the Spire 2?
Fusion is an uncommon Defect skill in Slay the Spire 2. In combat it resolves as: Channel 1 Plasma. 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 2 recorded runs, decks running it win 50.0% of the time, comfortably clear of the 12.6% average, by 37.4%. It’s a more selective pick, turning up in just 0.4% of decks that could run it. Defect players keep it in 3.6% of their runs, so it’s a familiar sight in those decks. On average it shows up 2.0 times in the decks that take it.
At 2 energy, it’s upgraded in 0.0% of runs and usually joins the deck around floor 11.
Upgraded, it gains -1 EnergyCost, which is why so many decks invest a rest-site upgrade in it. That’s 1 wins, 1 deaths, and 0 abandoned runs with it in the deck. Read on for Fusion’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Defect run.
Fusion Win Rate & Pick Rate
Fusion’s 50.0% win rate clears the 12.6% all-deck average by 37.4%, the gap charted below.
Run Outcomes with Fusion
Fusion has 1 wins and 1 losses over 2 tracked runs (50.0% won); abandoned runs count as losses.
- Wins 50.0%
- Losses 50.0%
Fusion Win Rate by Class
Fusion is played across 2 classes, led by Defect (100.0%) and Necrobinder (0.0%) by win rate.
Fusion Card Details
Fusion is an uncommon skill costing 2 energy; it’s upgraded in 0.0% of runs and usually picked up by floor 11.
Channel 1 Plasma.
Upgrade: -1 EnergyCost
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Fusion – Frequently Asked Questions
Is Fusion good in Slay the Spire 2?
Across 2 tracked runs, Fusion has a 50.0% win rate — +37.4% above the average deck. Win rate reflects how often runs that include the card end in victory.
What does Fusion do in Slay the Spire 2?
Fusion costs 2 energy. Channel 1 Plasma.
What class is Fusion in Slay the Spire 2?
Fusion is an Uncommon Defect Skill.
Is Fusion worth upgrading in Slay the Spire 2?
Players upgrade Fusion in 0.0% of runs. Upgrading it grants -1 EnergyCost.
See Also
Compare Fusion with the rest of the best Slay the Spire 2 cards, relics, and classes below.