
Snecko SkullRelic
Whenever you apply Poison, apply an additional Poison.
Is Snecko Skull good in Slay the Spire 2?
In Slay the Spire 2, Snecko Skull is a common relic you can pick up on your climb. Its effect: Whenever you apply Poison, apply an additional Poison. Performance-wise it’s a steady, unspectacular pick rated C tier overall.
Over 170 tracked runs the win rate of decks holding it sits at 45.6%, 31.6% ahead of the 14.0% all-run baseline. It sees lighter play, carried in only 1.5% of runs. It does its best work in the hands of the Silent, who post a 45.6% win rate with it. Within Silent runs specifically, it’s carried 5.9% of the time.
Its standout card pairing is Well-Laid Plans, which lifts the relic’s win rate by +31.7% when both are in play. It also works nicely with Knife Trap, good for a +25.9% win-rate change. It typically enters the deck near floor 24. As a common relic, how often it’s offered depends on its rarity tier.
Of the runs that carried it, 77 ended in victory while 92 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 6.5% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Snecko Skull is worth grabbing.
Snecko Skull Win Rate & Pick Rate
At a 45.6% win rate, Snecko Skull runs 31.6% ahead of the 14.0% all-run baseline — the bars below put the two side by side.
Run Outcomes with Snecko Skull
Across the 170 runs that carried Snecko Skull, 77 ended in a win and 93 in a loss — a 45.3% win share, counting abandons as losses.
- Wins 45.3%
- Losses 54.7%
Pick or Skip: Snecko Skull
Players take Snecko Skull in 56.9% of the 304 offers it appears in; those runs win 45.9% against 37.6% for runs that passed, a pick lift of +7.9% over 172 decided runs.
Taken 173 times out of 304 offers.
Pick rate when offered counts offers, not runs: out of every time the game put this in front of a player, how often it was taken. It is not the same number as the share of runs that end up containing it.
Pick lift is the sample-adjusted gap between runs that took the option and runs that passed on it. It is the fair way to rank choices, because raw win rates put the smallest samples on top.
Best Cards with Snecko Skull
The cards that gain the most from carrying Snecko Skull are Well-Laid Plans (+31.7%), Knife Trap (+25.9%), and Burst (+25.9%), each shown with its win-rate swing.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Snecko Skull Win Rate by Class
Snecko Skull’s class data comes mostly from the Silent, at a 45.6% win rate over 170 runs.
Snecko Skull Details
Carried in 1.5% of runs, Snecko Skull is a common relic typically acquired near floor 24.
Whenever you apply Poison, apply an additional Poison.
What Ends Runs with Snecko Skull
Runs carrying Snecko Skull end most often against Test Subject Boss (6.5%), Queen Boss (6.5%), and Kaiser Crab Boss (5.3%) — the share of its runs each accounts for is shown.
- Test Subject Boss6.5% of runs
- Queen Boss6.5% of runs
- Kaiser Crab Boss5.3% of runs
- The Insatiable Boss3.5% of runs
- Aeonglass Boss3.5% of runs
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Snecko Skull – Frequently Asked Questions
Is Snecko Skull good in Slay the Spire 2?
Across 170 tracked runs carrying it, Snecko Skull wins 45.6% of the time — +31.6% above the average run. Win rate reflects how often runs with the relic end in victory.
What does Snecko Skull do in Slay the Spire 2?
Whenever you apply Poison, apply an additional Poison.
How rare is Snecko Skull in Slay the Spire 2?
Snecko Skull is a Common relic, picked up in 1.5% of tracked runs.
What is the best card to use with Snecko Skull?
In tracked runs, Snecko Skull has performed best alongside Well-Laid Plans, which lifts its win rate by +31.7% over 23 runs together.
Should I take Snecko Skull when it is offered?
Players take Snecko Skull in 56.9% of its 304 recorded offers. Runs that picked it win 45.9% (172 decided runs) against 37.6% for runs that skipped it (125 decided runs) — a +8.3% difference, and a +7.9% pick lift once sample size is accounted for.
See Also
Keep exploring Slay the Spire 2 tier lists and stats below.