Quasar Skill

Is Quasar good in Slay the Spire 2?

In Slay the Spire 2, Quasar is an uncommon skill from the Regent card pool. Its effect: Choose 1 of 3 random Colorless cards to add into your Hand. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 365 tracked runs its win rate sits at 29.8%, 15.9% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 1.5% of eligible runs. When it is actually offered players take it 19.9% of the time, and that looks correct: those runs win 28.7% against 25.2% for runs that passed, a +3.4% pick lift over 310 decided runs. Within Regent runs it’s drafted 8.3% 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 Mad Science, which lifts its win rate by +43.2% when the two share a deck. On the relic side, Candelabra is its standout companion, worth a +33.0% win-rate swing alongside it. It costs 0 energy, gets upgraded 39.4% of the time, and tends to be picked up near floor 14.

Of the runs that drafted it, 108 ended in victory against 255 deaths and 2 abandons. Its most common run-ender is Vantom Boss, finishing 3.8% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Quasar fits a Regent deck.

Pick or Skip: Quasar

Players take Quasar in 19.9% of the 1646 offers it appears in; those runs win 28.7% against 25.2% for runs that passed, a pick lift of +3.4% over 310 decided runs.

Taken 328 times out of 1646 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 Quasar

Of the 4 pickup windows recorded for Quasar, Act 3 is the best: 62.1% across 29 runs.

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

Best Cards to Pair with Quasar

Quasar’s strongest card pairings so far are Mad Science (+43.2%), Sword Sage (+26.9%), and GUARDS!!! (+24.9%), each shown with the win-rate lift it adds.

Mad Science+43.2%27 runsSword Sage+26.9%27 runsGUARDS!!!+24.9%32 runsDying Star+24.8%46 runsCelestial Might+24.2%41 runsBombardment+23.5%35 runs

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

Quasar Win Rate by Class

Exclusive to the Regent, Quasar posts a 30.0% win rate over 362 tracked runs.

The Regentappears in 8.3% of its runs (362 tracked)

Best Relics for Quasar

The relics that swing Quasar’s win rate the most are Candelabra (+33.0%), Bag of Preparation (+30.5%), and Venerable Tea Set (+27.1%), with each lift shown.

Candelabra+33.0%25 runsBag of Preparation+30.5%59 runsVenerable Tea Set+27.1%48 runsGorget+26.8%66 runsNunchaku+26.0%33 runsBlood Vial+25.8%53 runs

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

Quasar Card Details

A 0-energy uncommon skill, Quasar is upgraded 39.4% of the time and tends to enter the deck around floor 14.

Choose 1 of 3 random Colorless cards to add into your Hand.

What Ends Runs with Quasar

Runs holding Quasar end most often against Vantom Boss (3.8%), Decimillipede Elite (3.6%), and Test Subject Boss (3.6%) — the share of its runs each accounts for is shown.

• Vantom Boss3.8% of runs
• Decimillipede Elite3.6% of runs
• Test Subject Boss3.6% of runs
• Entomancer Elite3.0% of runs
• The Insatiable Boss3.0% of runs

See Also

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