
In Slay the Spire 2, Lunar Blast is an uncommon attack from the Regent card pool. Its effect: Deal 4 damage for each Skill already played this turn. Performance-wise it’s a solid if unspectacular include, rated C tier overall.
Over 59 tracked runs its win rate sits at 28.8%, 14.3% ahead of the 14.5% all-deck baseline. It sees niche play, included in only 0.6% of eligible runs. Offer data argues the other way: taken 10.0% of the time it is shown, runs that picked it win 26.1% against 28.8% for runs that passed — a -2.2% pick lift across 46 decided runs. Within Regent runs it’s drafted 3.6% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.0 copies on average.
Its standout pairing so far is Cosmic Indifference, which lifts its win rate by +24.6% when the two share a deck. On the relic side, Potion Belt is its standout companion, worth a +6.7% win-rate swing alongside it. It costs 0 energy, gets upgraded 29.5% of the time, and tends to be picked up near floor 14.
Upgrading the card adds +1 Damage to its stat line. Of the runs that drafted it, 17 ended in victory against 42 deaths and 0 abandons. Its most common run-ender is The Kin Boss, finishing 6.8% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Lunar Blast fits a Regent deck.
At a 28.8% win rate, Lunar Blast runs 14.3% ahead of the 14.5% all-deck baseline — the bars below put the two side by side.
Across the 59 tracked runs that drafted Lunar Blast, 17 ended in a win and 42 in a loss — a 28.8% win share, counting abandons as losses.
Players take Lunar Blast in 10.0% of the 478 offers it appears in; those runs win 26.1% against 28.8% for runs that passed, a pick lift of -2.2% over 46 decided runs.
Taken 48 times out of 478 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.
Of the 3 pickup windows recorded for Lunar Blast, Act 2 is the best: 43.8% across 16 runs.
Win rate of runs by the act Lunar Blast entered the deck. Acts that have not reached the sample floor show their run count only.
Lunar Blast’s strongest card pairings so far are Cosmic Indifference (+24.6%), Glow (+19.3%), and Particle Wall (+14.7%), each shown with the win-rate lift it adds.
Exclusive to the Regent, Lunar Blast posts a 29.3% win rate over 58 tracked runs.
The relics that swing Lunar Blast’s win rate the most are Potion Belt (+6.7%) and Divine Right (-0.2%), with each lift shown.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
A 0-energy uncommon attack, Lunar Blast is upgraded 29.5% of the time and tends to enter the deck around floor 14.
Deal 4 damage for each Skill already played this turn.
Upgrade: +1 Damage
Runs holding Lunar Blast end most often against The Kin Boss (6.8%), Entomancer Elite (5.1%), and Queen Boss (5.1%) — the share of its runs each accounts for is shown.
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Based on small co-occurring samples — treat these as early signals, not final verdicts.
Across 59 tracked runs, Lunar Blast has a 28.8% win rate — +14.3% above the average deck. Win rate reflects how often runs that include the card end in victory.
Lunar Blast costs 0 energy. Deal 4 damage for each Skill already played this turn.
Lunar Blast is an Uncommon Regent Attack.
Players upgrade Lunar Blast in 29.5% of runs. Upgrading it grants +1 Damage.
In tracked runs, Lunar Blast has performed best alongside Potion Belt, which lifts its win rate by +6.7% over 15 runs together.
Players take Lunar Blast in 10.0% of its 478 recorded offers. Runs that picked it win 26.1% (46 decided runs) against 28.8% for runs that skipped it (313 decided runs) — a -2.7% difference, and a -2.2% pick lift once sample size is accounted for.
Deal 4 damage for each Skill already played this turn.