Self-Forming Clay Relic

Is Self-Forming Clay good in Slay the Spire 2?

In Slay the Spire 2, Self-Forming Clay is an uncommon relic you can pick up on your climb. Its effect: Whenever you lose HP in combat, gain Block next turn. Performance-wise it’s a steady, unspectacular pick rated C tier overall.

Over 135 tracked runs the win rate of decks holding it sits at 46.3%, 32.4% ahead of the 13.8% all-run baseline. It sees lighter play, carried in only 0.7% of runs. It does its best work in the hands of the Ironclad, who post a 46.3% win rate with it. Within Ironclad runs specifically, it’s carried 2.9% of the time.

Its standout card pairing is Hellraiser, which lifts the relic’s win rate by +34.7% when both are in play. It also works nicely with Feed, good for a +32.7% win-rate change. It typically enters the deck near floor 22. As an uncommon relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 62 ended in victory while 72 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 6.7% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Self-Forming Clay is worth grabbing.

Pick or Skip: Self-Forming Clay

Players take Self-Forming Clay in 49.8% of the 275 offers it appears in; those runs win 45.6% against 22.9% for runs that passed, a pick lift of +21.1% over 136 decided runs.

Taken 137 times out of 275 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 Self-Forming Clay

The cards that gain the most from carrying Self-Forming Clay are Hellraiser (+34.7%), Feed (+32.7%), and Rupture (+30.6%), each shown with its win-rate swing.

Hellraiser+34.7%21 runsFeed+32.7%19 runsRupture+30.6%26 runsStoke+30.2%17 runsCascade+28.7%20 runsOne-Two Punch+24.3%17 runs

Based on small co-occurring samples — treat these as early signals, not final verdicts.

Self-Forming Clay Win Rate by Class

Self-Forming Clay’s class data comes mostly from the Ironclad, at a 46.3% win rate over 135 runs.

The Ironcladappears in 2.9% of its runs (135 tracked)

Self-Forming Clay Details

Carried in 0.7% of runs, Self-Forming Clay is an uncommon relic typically acquired near floor 22.

Whenever you lose HP in combat, gain Block next turn.

What Ends Runs with Self-Forming Clay

Runs carrying Self-Forming Clay end most often against Test Subject Boss (6.7%), Aeonglass Boss (5.9%), and Queen Boss (5.9%) — the share of its runs each accounts for is shown.

• Test Subject Boss6.7% of runs
• Aeonglass Boss5.9% of runs
• Queen Boss5.9% of runs
• Mecha Knight Elite3.7% of runs
• The Insatiable Boss3.0% of runs

See Also

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