Hidden Gem•Skill

Is Hidden Gem good in Slay the Spire 2?

Hidden Gem is a rare Colorless skill in Slay the Spire 2. In combat it resolves as: A random card without Replay in your Draw Pile gains Replay. It’s a dependable, middle-of-the-pack option, landing at C tier in our rankings.

Across 6 recorded runs, decks running it win 20.0% of the time, comfortably clear of the 12.6% average, by 7.4%. It’s a more selective pick, turning up in just 1.2% of decks that could run it. Regent players keep it in 0.6% of their runs, so it’s a familiar sight in those decks. On average it shows up 1.0 times in the decks that take it.

It performs best next to Ascender's Bane — together they post a +5.0% swing in win rate. It also has strong chemistry with the relic Regal Pillow, which moves its win rate by +13.3%. At 1 energy, it’s upgraded in 33.3% of runs and usually joins the deck around floor 20.

That’s 1 wins, 4 deaths, and 1 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Entomancer Elite, which closes out 50.0% of its appearances. Read on for Hidden Gem’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Colorless run.

Best Cards to Pair with Hidden Gem

Ranked by win-rate lift, Hidden Gem performs best alongside Ascender's Bane (+5.0%), Bodyguard (-20.0%), and Cleanse (-20.0%).

Ascender's Bane+5.0%5 runsBodyguard-20.0%3 runsCleanse-20.0%3 runsUnleash-20.0%3 runsWisp-20.0%3 runs

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

Hidden Gem Win Rate by Class

Hidden Gem is played across 3 classes, led by Regent (100.0%), Necrobinder (0.0%), and Ironclad (0.0%) by win rate.

The Regent100.0%1 runsThe Necrobinder0.0%4 runsThe Ironclad0.0%1 runs

Best Relics for Hidden Gem

Hidden Gem pairs best with the relics Regal Pillow (+13.3%) and Bound Phylactery (-20.0%), ranked by win-rate lift.

Regal Pillow+13.3%3 runsBound Phylactery-20.0%4 runs

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

Hidden Gem Card Details

Hidden Gem is a rare skill costing 1 energy; it’s upgraded in 33.3% of runs and usually picked up by floor 20.

A random card without Replay in your Draw Pile gains Replay.

What Ends Runs with Hidden Gem

Hidden Gem’s most common run-enders are Entomancer Elite (50.0%).

• Entomancer Elite50.0% of runs

See Also

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