Eternal Armor Power

Is Eternal Armor good in Slay the Spire 2?

In Slay the Spire 2, Eternal Armor is a rare power from the Colorless card pool. Its effect: Gain 9 Plating. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 127 tracked runs its win rate sits at 44.8%, 30.5% ahead of the 14.3% all-deck baseline. It sees niche play, included in only 0.5% of eligible runs. When it is actually offered players take it 0.8% of the time, and that looks correct: those runs win 68.8% against 30.4% for runs that passed, a +23.6% pick lift over 16 decided runs. Within Ironclad runs it’s drafted 0.6% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.2 copies on average.

Its standout pairing so far is Pommel Strike, which lifts its win rate by +18.6% when the two share a deck. On the relic side, Regal Pillow is its standout companion, worth a +25.7% win-rate swing alongside it. It costs 3 energy, gets upgraded 42.0% of the time, and tends to be picked up near floor 22.

Of the runs that drafted it, 56 ended in victory against 69 deaths and 2 abandons. Its most common run-ender is Decimillipede Elite, finishing 4.7% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Eternal Armor fits a Colorless deck.

Pick or Skip: Eternal Armor

Players take Eternal Armor in 0.8% of the 1881 offers it appears in; those runs win 68.8% against 30.4% for runs that passed, a pick lift of +23.6% over 16 decided runs.

Taken 16 times out of 1881 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.

When to Pick Up Eternal Armor

Of the 3 pickup windows recorded for Eternal Armor, Act 3 is the best: 76.3% across 38 runs.

Win rate of runs by the act Eternal Armor entered the deck. Acts that have not reached the sample floor show their run count only.

Best Cards to Pair with Eternal Armor

Eternal Armor’s strongest card pairings so far are Pommel Strike (+18.6%), Shrug It Off (+11.6%), and Bloodletting (+10.9%), each shown with the win-rate lift it adds.

Pommel Strike+18.6%16 runsShrug It Off+11.6%21 runsBloodletting+10.9%16 runsClumsy+8.8%17 runsDefend+5.2%33 runsTremble+5.1%17 runs

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

Eternal Armor Win Rate by Class

Of the 5 classes that draft Eternal Armor, it performs best with Ironclad (54.0%), Silent (43.8%), and Defect (40.0%).

The Ironclad54.0%37 runsThe Silent43.8%17 runsThe Defect40.0%20 runsThe Regent36.8%19 runsThe Necrobinder36.7%31 runs

Best Relics for Eternal Armor

The relics that swing Eternal Armor’s win rate the most are Regal Pillow (+25.7%), Blood Vial (+25.1%), and Bag of Preparation (+24.1%), with each lift shown.

Regal Pillow+25.7%30 runsBlood Vial+25.1%26 runsBag of Preparation+24.1%29 runsCandelabra+22.4%20 runsFestive Popper+22.3%26 runsCentennial Puzzle+18.9%31 runs

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

Eternal Armor Card Details

A 3-energy rare power, Eternal Armor is upgraded 42.0% of the time and tends to enter the deck around floor 22.

Gain 9 Plating.

What Ends Runs with Eternal Armor

Runs holding Eternal Armor end most often against Decimillipede Elite (4.7%), Test Subject Boss (4.7%), and Knowledge Demon Boss (3.9%) — the share of its runs each accounts for is shown.

• Decimillipede Elite4.7% of runs
• Test Subject Boss4.7% of runs
• Knowledge Demon Boss3.9% of runs
• The Insatiable Boss3.1% of runs
• Infested Prisms Elite3.1% of runs

See Also

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