Pen Nib Relic

Is Pen Nib good in Slay the Spire 2?

In Slay the Spire 2, Pen Nib is an uncommon relic you can pick up on your climb. Its effect: Every 10th Attack you play deals double damage. The data marks it as a weaker relic, settling at D tier — rarely a run-defining grab.

Over 1072 tracked runs the win rate of decks holding it sits at 34.8%, 20.9% ahead of the 13.8% all-run baseline. It sees lighter play, carried in only 5.1% of runs. It does its best work in the hands of the Ironclad, who post a 36.9% win rate with it. Within Ironclad runs specifically, it’s carried 5.4% of the time.

Its standout card pairing is Stoke, which lifts the relic’s win rate by +41.2% when both are in play. It also works nicely with Apotheosis, good for a +40.2% win-rate change. It typically enters the deck near floor 21. As an uncommon relic, how often it’s offered depends on its rarity tier.

Of the runs that carried it, 368 ended in victory while 690 fell to a defeat. Its most common run-ender is Test Subject Boss, finishing 6.3% of the runs it appears in. See the best cards, class split, and threats below for the full read on whether Pen Nib is worth grabbing.

Pick or Skip: Pen Nib

Players take Pen Nib in 61.8% of the 1766 offers it appears in; those runs win 35.0% against 28.4% for runs that passed, a pick lift of +6.6% over 1074 decided runs.

Taken 1091 times out of 1766 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 Pen Nib

The cards that gain the most from carrying Pen Nib are Stoke (+41.2%), Apotheosis (+40.2%), and Dying Star (+37.4%), each shown with its win-rate swing.

Stoke+41.2%27 runsApotheosis+40.2%21 runsDying Star+37.4%18 runsMangle+36.6%22 runsMaster of Strategy+35.6%28 runsWhistle+34.0%16 runs

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

Pen Nib Win Rate by Class

Of the 5 classes that carry Pen Nib, it performs best with Ironclad (36.9%), Silent (36.3%), and Necrobinder (36.1%).

The Ironclad36.9%249 runsThe Silent36.3%257 runsThe Necrobinder36.1%180 runsThe Regent36.0%192 runsThe Defect26.5%187 runs

Pen Nib Details

Carried in 5.1% of runs, Pen Nib is an uncommon relic typically acquired near floor 21.

Every 10th Attack you play deals double damage.

What Ends Runs with Pen Nib

Runs carrying Pen Nib end most often against Test Subject Boss (6.3%), Aeonglass Boss (5.7%), and Queen Boss (5.1%) — the share of its runs each accounts for is shown.

• Test Subject Boss6.3% of runs
• Aeonglass Boss5.7% of runs
• Queen Boss5.1% of runs
• Knowledge Demon Boss4.5% of runs
• Kaiser Crab Boss4.4% of runs

See Also

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