Stardust Attack

Is Stardust good in Slay the Spire 2?

Stardust is an uncommon Regent attack in Slay the Spire 2. In combat it resolves as: Deal 5 damage to a random enemy X times. It’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 371 recorded runs, decks running it win 32.3% of the time, comfortably clear of the 13.8% average, by 18.5%. It’s a more selective pick, turning up in just 1.8% of decks that could run it. Offer data backs the pick — taken 23.2% of the time it is shown, with 33.0% for runs that took it against 28.9% for runs that did not, a +3.9% pick lift across 288 decided runs. Regent players keep it in 11.2% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.2 times in the decks that take it.

It performs best next to Arsenal — together they post a +24.2% swing in win rate. It also has strong chemistry with the relic Anchor, which moves its win rate by +31.3%. At 0 energy, it’s upgraded in 45.0% of runs and usually joins the deck around floor 15.

Upgraded, it gains +2 Damage, which is why so many decks invest a rest-site upgrade in it. That’s 118 wins, 247 deaths, and 6 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is The Insatiable Boss, which closes out 4.6% of its appearances. Read on for Stardust’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Regent run.

Pick or Skip: Stardust

Out of 1360 recorded offers Stardust is taken 23.2% of the time, and taking it is worth +3.9% in pick lift — 33.0% for runs that picked it against 28.9% for runs that skipped, across 288 decided runs.

Taken 316 times out of 1360 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 Stardust

Stardust is strongest when it joins the deck in Act 3, where runs win 66.7% across 51 runs — one of 4 recorded pickup windows.

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

Best Cards to Pair with Stardust

Ranked by win-rate lift, Stardust performs best alongside Arsenal (+24.2%), Bundle of Joy (+23.6%), and Big Bang (+22.6%).

Arsenal+24.2%24 runsBundle of Joy+23.6%28 runsBig Bang+22.6%66 runsThe Sealed Throne+21.8%21 runsGUARDS!!!+21.3%24 runsQuasar+21.1%41 runs

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

Stardust Win Rate by Class

Stardust is drafted only by the Regent, where it holds a 32.6% win rate across 368 runs.

The Regentappears in 11.2% of its runs (368 tracked)

Best Relics for Stardust

Stardust pairs best with the relics Anchor (+31.3%), Miniature Cannon (+29.8%), and Shuriken (+27.8%), ranked by win-rate lift.

Anchor+31.3%71 runsMiniature Cannon+29.8%31 runsShuriken+27.8%19 runsFragrant Mushroom+27.8%27 runsOrichalcum+27.8%33 runsPermafrost+27.2%25 runs

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

Stardust Card Details

Stardust is an uncommon attack costing 0 energy; it’s upgraded in 45.0% of runs and usually picked up by floor 15.

Deal 5 damage to a random enemy X times.

Upgrade: +2 Damage

What Ends Runs with Stardust

Stardust’s most common run-enders are The Insatiable Boss (4.6%), Test Subject Boss (4.6%), and Knowledge Demon Boss (4.0%).

• The Insatiable Boss4.6% of runs
• Test Subject Boss4.6% of runs
• Knowledge Demon Boss4.0% of runs
• Kaiser Crab Boss3.0% of runs
• Infested Prisms Elite3.0% of runs

See Also

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