Neutron Aegis•Power

Is Neutron Aegis good in Slay the Spire 2?

In Slay the Spire 2, Neutron Aegis is a rare power from the Regent card pool. Its effect: Gain 8 Plating. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 14 tracked runs its win rate sits at 23.1%, 10.5% ahead of the 12.6% all-deck baseline. It sees niche play, included in only 2.7% of eligible runs. Within Regent runs it’s drafted 7.8% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.1 copies on average.

Its standout pairing so far is Devastate, which lifts its win rate by +76.9% when the two share a deck. On the relic side, War Paint is its standout companion, worth a +43.6% win-rate swing alongside it. It costs 1 energy, gets upgraded 62.5% of the time, and tends to be picked up near floor 14.

Of the runs that drafted it, 3 ended in victory against 10 deaths and 1 abandons. Its most common run-ender is Entomancer Elite, finishing 21.4% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Neutron Aegis fits a Regent deck.

Best Cards to Pair with Neutron Aegis

Neutron Aegis’s strongest card pairings so far are Devastate (+76.9%), Child of the Stars (+76.9%), and Solar Strike (+43.6%), each shown with the win-rate lift it adds.

Devastate+76.9%3 runsChild of the Stars+76.9%3 runsSolar Strike+43.6%3 runsParticle Wall+43.6%3 runsStardust+43.6%3 runsSupermassive+43.6%3 runs

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

Neutron Aegis Win Rate by Class

Of the 2 classes that draft Neutron Aegis, it performs best with Regent (25.0%) and Defect (0.0%).

The Regent25.0%13 runsThe Defect0.0%1 runs

Best Relics for Neutron Aegis

The relics that swing Neutron Aegis’s win rate the most are War Paint (+43.6%), Kusarigama (+10.3%), and Sparkling Rouge (+10.3%), with each lift shown.

War Paint+43.6%3 runsKusarigama+10.3%3 runsSparkling Rouge+10.3%3 runsRed Mask+10.3%3 runsDivine Right-3.1%11 runsHefty Tablet-23.1%5 runs

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

Neutron Aegis Card Details

A 1-energy rare power, Neutron Aegis is upgraded 62.5% of the time and tends to enter the deck around floor 14.

Gain 8 Plating.

What Ends Runs with Neutron Aegis

Runs holding Neutron Aegis end most often against Entomancer Elite (21.4%) and The Insatiable Boss (14.3%) — the share of its runs each accounts for is shown.

• Entomancer Elite21.4% of runs
• The Insatiable Boss14.3% of runs

See Also

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