Black Hole Power

Is Black Hole good in Slay the Spire 2?

Black Hole is an uncommon Regent power in Slay the Spire 2. In combat it resolves as: Whenever you spend or gain, deal 3 damage to ALL enemies. It currently underperforms most alternatives, sitting at D tier in our Slay the Spire 2 card rankings.

Across 865 recorded runs, decks running it win 24.3% of the time, comfortably clear of the 14.3% average, by 10.0%. It’s a more selective pick, turning up in just 3.2% of decks that could run it. Taken in 30.8% of its offers, it still trails on the pick-versus-skip split: 23.8% for runs that took it against 32.2% for runs that left it, a -8.2% pick lift over 609 decided runs. Regent players keep it in 18.5% 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 Mad Science — together they post a +30.3% swing in win rate. It also has strong chemistry with the relic Sword of Jade, which moves its win rate by +40.5%. At 1 energy, it’s upgraded in 27.6% of runs and usually joins the deck around floor 14.

That’s 209 wins, 651 deaths, and 5 abandoned runs with it in the deck. The encounter that most often ends a run carrying it is Decimillipede Elite, which closes out 4.7% of its appearances. Read on for Black Hole’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Regent run.

Pick or Skip: Black Hole

Out of 2185 recorded offers Black Hole is taken 30.8% of the time, and taking it is worth -8.2% in pick lift — 23.8% for runs that picked it against 32.2% for runs that skipped, across 609 decided runs.

Taken 673 times out of 2185 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 Black Hole

Black Hole is strongest when it joins the deck in Act 3, where runs win 65.4% across 81 runs — one of 4 recorded pickup windows.

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

Best Cards to Pair with Black Hole

Ranked by win-rate lift, Black Hole performs best alongside Mad Science (+30.3%), Master of Strategy (+27.4%), and Bundle of Joy (+27.1%).

Mad Science+30.3%64 runsMaster of Strategy+27.4%16 runsBundle of Joy+27.1%59 runsProphesize+26.6%36 runsThe Sealed Throne+25.6%42 runsDecay+24.3%31 runs

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

Black Hole Win Rate by Class

Black Hole is drafted only by the Regent, where it holds a 24.3% win rate across 865 runs.

The Regentappears in 18.5% of its runs (865 tracked)

Best Relics for Black Hole

Black Hole pairs best with the relics Sword of Jade (+40.5%), Bread (+32.4%), and Kifuda (+31.9%), ranked by win-rate lift.

Sword of Jade+40.5%20 runsBread+32.4%19 runsKifuda+31.9%22 runsLee's Waffle+30.9%28 runsShuriken+29.5%28 runsTri-Boomerang+29.4%15 runs

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

Black Hole Card Details

Black Hole is an uncommon power costing 1 energy; it’s upgraded in 27.6% of runs and usually picked up by floor 14.

Whenever you spend or gain, deal 3 damage to ALL enemies.

What Ends Runs with Black Hole

Black Hole’s most common run-enders are Decimillipede Elite (4.7%), Knowledge Demon Boss (4.6%), and Queen Boss (4.6%).

• Decimillipede Elite4.7% of runs
• Knowledge Demon Boss4.6% of runs
• Queen Boss4.6% of runs
• The Insatiable Boss3.9% of runs
• Infested Prisms Elite3.7% of runs

See Also

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