Supermassive Attack

Is Supermassive good in Slay the Spire 2?

In Slay the Spire 2, Supermassive is an uncommon attack from the Regent card pool. Its effect: Deal 5 damage. Deals 3 additional damage for each card you created this combat. Performance-wise it’s a solid if unspectacular include, rated C tier overall.

Over 230 tracked runs its win rate sits at 33.2%, 19.4% ahead of the 13.8% all-deck baseline. It sees niche play, included in only 1.1% of eligible runs. When it is actually offered players take it 17.8% of the time, and that looks correct: those runs win 32.5% against 26.2% for runs that passed, a +6.0% pick lift over 188 decided runs. Within Regent runs it’s drafted 6.8% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.2 copies on average.

Its standout pairing so far is Big Bang, which lifts its win rate by +22.1% when the two share a deck. On the relic side, Mummified Hand is its standout companion, worth a +32.1% win-rate swing alongside it. It costs 1 energy, gets upgraded 40.9% of the time, and tends to be picked up near floor 14.

Upgrading the card adds +1 ExtraDamage to its stat line. Of the runs that drafted it, 76 ended in victory against 153 deaths and 1 abandons. Its most common run-ender is Aeonglass Boss, finishing 5.7% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Supermassive fits a Regent deck.

Pick or Skip: Supermassive

Players take Supermassive in 17.8% of the 1178 offers it appears in; those runs win 32.5% against 26.2% for runs that passed, a pick lift of +6.0% over 188 decided runs.

Taken 210 times out of 1178 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 Supermassive

Of the 3 pickup windows recorded for Supermassive, Act 3 is the best: 58.6% across 29 runs.

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

Best Cards to Pair with Supermassive

Supermassive’s strongest card pairings so far are Big Bang (+22.1%), GUARDS!!! (+22.0%), and Glimmer (+21.9%), each shown with the win-rate lift it adds.

Big Bang+22.1%43 runsGUARDS!!!+22.0%26 runsGlimmer+21.9%16 runsMad Science+21.2%20 runsBundle of Joy+19.8%34 runsGenesis+19.4%21 runs

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

Supermassive Win Rate by Class

Exclusive to the Regent, Supermassive posts a 33.2% win rate over 224 tracked runs.

The Regentappears in 6.8% of its runs (224 tracked)

Best Relics for Supermassive

The relics that swing Supermassive’s win rate the most are Mummified Hand (+32.1%), Oddly Smooth Stone (+25.8%), and Anchor (+25.0%), with each lift shown.

Mummified Hand+32.1%15 runsOddly Smooth Stone+25.8%38 runsAnchor+25.0%49 runsVenerable Tea Set+25.0%50 runsAkabeko+24.9%25 runsRipple Basin+24.5%20 runs

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

Supermassive Card Details

A 1-energy uncommon attack, Supermassive is upgraded 40.9% of the time and tends to enter the deck around floor 14.

Deal 5 damage. Deals 3 additional damage for each card you created this combat.

Upgrade: +1 ExtraDamage

What Ends Runs with Supermassive

Runs holding Supermassive end most often against Aeonglass Boss (5.7%), Decimillipede Elite (5.7%), and Waterfall Giant Boss (4.3%) — the share of its runs each accounts for is shown.

• Aeonglass Boss5.7% of runs
• Decimillipede Elite5.7% of runs
• Waterfall Giant Boss4.3% of runs
• Knowledge Demon Boss4.3% of runs
• Queen Boss3.5% of runs

See Also

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