Toxic EggRelic
Whenever you add a Skill into your Deck, Upgrade it.
Is Toxic Egg good in Slay the Spire 2?
In Slay the Spire 2, Toxic Egg is a rare relic you can pick up on your climb. Its effect: Whenever you add a Skill into your Deck, Upgrade it. Performance-wise it’s a steady, unspectacular pick rated C tier overall.
Over 81 tracked runs the win rate of decks holding it sits at 46.0%, 27.1% ahead of the 18.9% all-run baseline. It sees lighter play, carried in only 2.1% of runs. It does its best work in the hands of the Silent, who post a 57.9% win rate with it. Within Silent runs specifically, it’s carried 2.1% of the time.
Its standout card pairing is Taunt, which lifts the relic’s win rate by +54.0% when both are in play. It also works nicely with Thunderclap, good for a +54.0% win-rate change. It typically enters the deck near floor 17. As a rare relic, how often it’s offered depends on its rarity tier.
Of the runs that carried it, 35 ended in victory while 41 fell to a defeat. Its most common run-ender is Lagavulin Matriarch Boss, finishing 4.9% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Toxic Egg is worth grabbing.
Toxic Egg Win Rate & Pick Rate
At a 46.0% win rate, Toxic Egg runs 27.1% ahead of the 18.9% all-run baseline — the bars below put the two side by side.
Run Outcomes with Toxic Egg
Across the 81 runs that carried Toxic Egg, 35 ended in a win and 46 in a loss — a 43.2% win share, counting abandons as losses.
- Wins 43.2%
- Losses 56.8%
Best Cards with Toxic Egg
The cards that gain the most from carrying Toxic Egg are Taunt (+54.0%), Thunderclap (+54.0%), and Bully (+54.0%), each shown with its win-rate swing.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Toxic Egg Details
Carried in 2.1% of runs, Toxic Egg is a rare relic typically acquired near floor 17.
Whenever you add a Skill into your Deck, Upgrade it.
What Ends Runs with Toxic Egg
Runs carrying Toxic Egg end most often against Lagavulin Matriarch Boss (4.9%), Entomancer Elite (3.7%), and Kaiser Crab Boss (3.7%) — the share of its runs each accounts for is shown.
- Lagavulin Matriarch Boss4.9% of runs
- Entomancer Elite3.7% of runs
- Kaiser Crab Boss3.7% of runs
- Test Subject Boss3.7% of runs
- The Insatiable Boss2.5% of runs
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Toxic Egg – Frequently Asked Questions
Is Toxic Egg good in Slay the Spire 2?
Across 81 tracked runs carrying it, Toxic Egg wins 46.0% of the time — +27.1% above the average run. Win rate reflects how often runs with the relic end in victory.
What does Toxic Egg do in Slay the Spire 2?
Whenever you add a Skill into your Deck, Upgrade it.
How rare is Toxic Egg in Slay the Spire 2?
Toxic Egg is a Rare relic, picked up in 2.1% of tracked runs.
What is the best card to use with Toxic Egg?
In tracked runs, Toxic Egg has performed best alongside Taunt, which lifts its win rate by +54.0% over 3 runs together.
Which class is Toxic Egg best in?
Toxic Egg has its highest win rate with The Silent (57.9%).
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.