Symbiotic Virus
Win Rate
0.0%
Pick Rate
0.2%
Δ vs Avg
-12.6

Symbiotic VirusRelic

Uncommon
RarityUncommon
MethodologyData Methodology

At the start of each combat, Channel Dark.

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Is Symbiotic Virus good in Slay the Spire 2?

In Slay the Spire 2, Symbiotic Virus is an uncommon relic you can pick up on your climb. Its effect: At the start of each combat, Channel Dark. The data marks it as a weaker relic, settling at F tier — rarely a run-defining grab.

Over 1 tracked runs the win rate of decks holding it sits at 0.0%, 12.6% short of the 12.6% all-run baseline. It sees lighter play, carried in only 0.2% of runs. It does its best work in the hands of the Defect, who post a 0.0% win rate with it. Within Defect runs specifically, it’s carried 3.6% of the time.

It typically enters the deck near floor 20. As an uncommon relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 0 ended in victory while 1 fell to a defeat. See the best cards, class split, and threats below for the full read on whether Symbiotic Virus is worth grabbing.

Symbiotic Virus Win Rate & Pick Rate

At a 0.0% win rate, Symbiotic Virus runs 12.6% behind the 12.6% all-run baseline — the bars below put the two side by side.

Win rate0.0%
Average run12.6%
-12.6% vs averagePick rate: 0.2%1 runs (limited)

Run Outcomes with Symbiotic Virus

Across the 1 runs that carried Symbiotic Virus, 0 ended in a win and 1 in a loss — a 0.0% win share, counting abandons as losses.

  • Wins 0.0%
  • Losses 100.0%

Symbiotic Virus Win Rate by Class

Symbiotic Virus’s class data comes mostly from the Defect, at a 0.0% win rate over 1 runs.

The DefectThe Defectappears in 3.6% of its runs (1 tracked)

Symbiotic Virus Details

Carried in 0.2% of runs, Symbiotic Virus is an uncommon relic typically acquired near floor 20.

At the start of each combat, Channel Dark.

RarityUncommon
Typical pickup floor20
Pick rate0.2%
Runs tracked1

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Symbiotic Virus – Frequently Asked Questions

Is Symbiotic Virus good in Slay the Spire 2?

Across 1 tracked runs carrying it, Symbiotic Virus wins 0.0% of the time — +12.6% below the average run. Win rate reflects how often runs with the relic end in victory.

What does Symbiotic Virus do in Slay the Spire 2?

At the start of each combat, Channel Dark.

How rare is Symbiotic Virus in Slay the Spire 2?

Symbiotic Virus is an Uncommon relic, picked up in 0.2% of tracked runs.

See Also

Keep exploring Slay the Spire 2 tier lists and stats below.