Spectrum Shift•Power

Is Spectrum Shift good in Slay the Spire 2?

Spectrum Shift is an uncommon Regent power in Slay the Spire 2. In combat it resolves as: At the start of your turn, add random Colorless cards into your Hand. It’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 29 recorded runs, decks running it win 24.1% of the time, comfortably clear of the 12.6% average, by 11.5%. It’s a more selective pick, turning up in just 5.6% of decks that could run it. Regent players keep it in 17.5% 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 Crush Under — together they post a +75.9% swing in win rate. It also has strong chemistry with the relic Vajra, which moves its win rate by +75.9%. At 2 energy, it’s upgraded in 54.5% of runs and usually joins the deck around floor 11.

Upgraded, it gains -1 EnergyCost, which is why so many decks invest a rest-site upgrade in it. That’s 7 wins, 22 deaths, and 0 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Terror Eel Elite, which closes out 10.3% of its appearances. Read on for Spectrum Shift’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Regent run.

Best Cards to Pair with Spectrum Shift

Ranked by win-rate lift, Spectrum Shift performs best alongside Crush Under (+75.9%), Mad Science (+75.9%), and The Smith (+50.9%).

Crush Under+75.9%3 runsMad Science+75.9%3 runsThe Smith+50.9%4 runsClumsy+42.5%3 runsBig Bang+42.5%3 runsEternal Armor+42.5%3 runs

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

Spectrum Shift Win Rate by Class

Spectrum Shift is drafted only by the Regent, where it holds a 24.1% win rate across 29 runs.

The Regentappears in 17.5% of its runs (29 tracked)

Best Relics for Spectrum Shift

Spectrum Shift pairs best with the relics Vajra (+75.9%), Horn Cleat (+75.9%), and Pendulum (+59.2%), ranked by win-rate lift.

Vajra+75.9%3 runsHorn Cleat+75.9%3 runsPendulum+59.2%6 runsWar Paint+55.9%5 runsFestive Popper+50.9%4 runsMummified Hand+50.9%4 runs

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

Spectrum Shift Card Details

Spectrum Shift is an uncommon power costing 2 energy; it’s upgraded in 54.5% of runs and usually picked up by floor 11.

At the start of your turn, add random Colorless cards into your Hand.

Upgrade: -1 EnergyCost

What Ends Runs with Spectrum Shift

Spectrum Shift’s most common run-enders are Terror Eel Elite (10.3%), The Kin Boss (6.9%), and Decimillipede Elite (6.9%).

• Terror Eel Elite10.3% of runs
• The Kin Boss6.9% of runs
• Decimillipede Elite6.9% of runs
• Waterfall Giant Boss6.9% of runs
• The Insatiable Boss6.9% of runs

See Also

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