Believe in You Skill

Is Believe in You good in Slay the Spire 2?

Believe in You is an uncommon Colorless skill in Slay the Spire 2. In combat it resolves as: Another player gains Energy. 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 71 recorded runs, decks running it win 33.3% of the time, comfortably clear of the 13.9% average, by 19.4%. It’s a more selective pick, turning up in just 0.6% of decks that could run it. Offer data is close to a wash — 16.4% of offers taken, 34.8% for runs that picked it against 37.5% for runs that skipped, a pick lift of just -1.9% over 23 decided runs. Ironclad players keep it in 0.5% 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 Ascender's Bane — together they post a +4.0% swing in win rate. It also has strong chemistry with the relic Happy Flower, which moves its win rate by +16.0%. At 0 energy, it’s upgraded in 20.0% of runs and usually joins the deck around floor 15.

Upgraded, it gains +1 Energy, which is why so many decks invest a rest-site upgrade in it. That’s 23 wins, 46 deaths, and 2 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Knowledge Demon Boss, which closes out 8.5% of its appearances. Read on for Believe in You’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Colorless run.

Pick or Skip: Believe in You

Out of 152 recorded offers Believe in You is taken 16.4% of the time, and taking it is worth -1.9% in pick lift — 34.8% for runs that picked it against 37.5% for runs that skipped, across 23 decided runs.

Taken 25 times out of 152 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 Believe in You

Believe in You is strongest when it joins the deck in Act 3, where runs win 63.6% across 11 runs — one of 3 recorded pickup windows.

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

Best Cards to Pair with Believe in You

Ranked by win-rate lift, Believe in You performs best alongside Ascender's Bane (+4.0%), Unleash (-9.0%), and Bodyguard (-10.7%).

Ascender's Bane+4.0%24 runsUnleash-9.0%17 runsBodyguard-10.7%19 runsDefend-13.6%18 runsStrike-13.6%18 runs

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

Believe in You Win Rate by Class

Believe in You is played across 5 classes, led by Ironclad (50.0%), Silent (38.5%), and Defect (30.8%) by win rate.

The Ironclad50.0%14 runsThe Silent38.5%13 runsThe Defect30.8%14 runsThe Regent30.0%10 runsThe Necrobinder16.7%19 runs

Best Relics for Believe in You

Believe in You pairs best with the relics Happy Flower (+16.0%), Lantern (+12.0%), and Oddly Smooth Stone (+12.0%), ranked by win-rate lift.

Happy Flower+16.0%15 runsLantern+12.0%15 runsOddly Smooth Stone+12.0%15 runsVenerable Tea Set+9.2%19 runsVajra0.0%15 runsMassive Scroll-9.4%30 runs

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

Believe in You Card Details

Believe in You is an uncommon skill costing 0 energy; it’s upgraded in 20.0% of runs and usually picked up by floor 15.

Another player gains Energy.

Upgrade: +1 Energy

What Ends Runs with Believe in You

Believe in You’s most common run-enders are Knowledge Demon Boss (8.5%), Decimillipede Elite (5.6%), and Kaiser Crab Boss (5.6%).

• Knowledge Demon Boss8.5% of runs
• Decimillipede Elite5.6% of runs
• Kaiser Crab Boss5.6% of runs
• Test Subject Boss4.2% of runs
• Aeonglass Boss4.2% of runs

See Also

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