Radiate•Attack

Is Radiate good in Slay the Spire 2?

Radiate is an uncommon Regent attack in Slay the Spire 2. In combat it resolves as: Deal 3 damage to ALL enemies for each Stars gained this turn. It ranks among the strongest cards its class can draft right now, earning a spot at B tier in our Slay the Spire 2 card tier list.

Across 20 recorded runs, decks running it win 30.0% of the time, comfortably clear of the 12.6% average, by 17.4%. It’s a more selective pick, turning up in just 3.9% of decks that could run it. Regent players keep it in 12.1% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.1 times in the decks that take it.

It performs best next to Manifest Authority — together they post a +70.0% swing in win rate. It also has strong chemistry with the relic Daughter of the Wind, which moves its win rate by +70.0%. At 0 energy, it’s upgraded in 9.5% of runs and usually joins the deck around floor 16.

Upgraded, it gains +1 Damage, which is why so many decks invest a rest-site upgrade in it. That’s 6 wins, 14 deaths, and 0 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Entomancer Elite, which closes out 10.0% of its appearances. Read on for Radiate’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Regent run.

Best Cards to Pair with Radiate

Ranked by win-rate lift, Radiate performs best alongside Manifest Authority (+70.0%), Big Bang (+70.0%), and Bulwark (+70.0%).

Manifest Authority+70.0%3 runsBig Bang+70.0%3 runsBulwark+70.0%3 runsSpoils of Battle+53.3%6 runsGlow+50.0%5 runsPillar of Creation+45.0%4 runs

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

Radiate Win Rate by Class

Radiate is drafted only by the Regent, where it holds a 30.0% win rate across 20 runs.

The Regentappears in 12.1% of its runs (20 tracked)

Best Relics for Radiate

Radiate pairs best with the relics Daughter of the Wind (+70.0%), Anchor (+70.0%), and Bag of Marbles (+70.0%), ranked by win-rate lift.

Daughter of the Wind+70.0%3 runsAnchor+70.0%3 runsBag of Marbles+70.0%3 runsPendulum+45.0%4 runsStrike Dummy+45.0%4 runsRed Mask+36.7%3 runs

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

Radiate Card Details

Radiate is an uncommon attack costing 0 energy; it’s upgraded in 9.5% of runs and usually picked up by floor 16.

Deal 3 damage to ALL enemies for each Stars gained this turn.

Upgrade: +1 Damage

What Ends Runs with Radiate

Radiate’s most common run-enders are Entomancer Elite (10.0%) and Phrog Parasite Elite (10.0%).

• Entomancer Elite10.0% of runs
• Phrog Parasite Elite10.0% of runs

See Also

Compare Radiate with the rest of the best Slay the Spire 2 cards, relics, and classes below.