Beam CellAttack
Deal 3 damage. Apply 1 Vulnerable.
Is Beam Cell good in Slay the Spire 2?
Beam Cell is a common Defect attack in Slay the Spire 2. In combat it resolves as: Deal 3 damage. Apply 1 Vulnerable. It currently underperforms most alternatives, sitting at D tier in our Slay the Spire 2 card rankings.
Across 12 recorded runs, decks running it win 0.0% of the time, trailing the 12.6% average by 12.6%. It’s a more selective pick, turning up in just 2.3% of decks that could run it. Defect players keep it in 39.3% 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 Ball Lightning — together they post a 0.0% swing in win rate. It also has strong chemistry with the relic Cracked Core, which moves its win rate by 0.0%. At 0 energy, it’s upgraded in 23.1% of runs and usually joins the deck around floor 12.
Upgraded, it gains +1 Damage, +1 Vulnerable, which is why so many decks invest a rest-site upgrade in it. That’s 0 wins, 12 deaths, and 0 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Knowledge Demon Boss, which closes out 16.7% of its appearances. Read on for Beam Cell’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Defect run.
Beam Cell Win Rate & Pick Rate
Beam Cell’s 0.0% win rate trails the 12.6% all-deck average by 12.6%, the gap charted below.
Run Outcomes with Beam Cell
Beam Cell has 0 wins and 12 losses over 12 tracked runs (0.0% won); abandoned runs count as losses.
- Wins 0.0%
- Losses 100.0%
Best Cards to Pair with Beam Cell
Ranked by win-rate lift, Beam Cell performs best alongside Ball Lightning (0.0%), Bulk Up (0.0%), and Charge Battery (0.0%).
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Best Relics for Beam Cell
Beam Cell pairs best with the relics Cracked Core (0.0%), New Leaf (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.
Beam Cell Card Details
Beam Cell is a common attack costing 0 energy; it’s upgraded in 23.1% of runs and usually picked up by floor 12.
Deal 3 damage. Apply 1 Vulnerable.
Upgrade: +1 Damage, +1 Vulnerable
What Ends Runs with Beam Cell
Beam Cell’s most common run-enders are Knowledge Demon Boss (16.7%), Kaiser Crab Boss (16.7%), and The Kin Boss (16.7%).
- Knowledge Demon Boss16.7% of runs
- Kaiser Crab Boss16.7% of runs
- The Kin Boss16.7% of runs
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Beam Cell – Frequently Asked Questions
Is Beam Cell good in Slay the Spire 2?
Across 12 tracked runs, Beam Cell has a 0.0% win rate — +12.6% below the average deck. Win rate reflects how often runs that include the card end in victory.
What does Beam Cell do in Slay the Spire 2?
Beam Cell costs 0 energy. Deal 3 damage. Apply 1 Vulnerable.
What class is Beam Cell in Slay the Spire 2?
Beam Cell is a Common Defect Attack.
Is Beam Cell worth upgrading in Slay the Spire 2?
Players upgrade Beam Cell in 23.1% of runs. Upgrading it grants +1 Damage, +1 Vulnerable.
What is the best relic for Beam Cell?
In tracked runs, Beam Cell has performed best alongside Cracked Core, which lifts its win rate by 0.0% over 9 runs together.
See Also
Compare Beam Cell with the rest of the best Slay the Spire 2 cards, relics, and classes below.