Lantern KeyQuest
Unlocks a special event in the next Act.
Is Lantern Key good in Slay the Spire 2?
Lantern Key is a quest Quest quest in Slay the Spire 2. In combat it resolves as: Unlocks a special event in the next Act. It currently underperforms most alternatives, sitting at D tier in our Slay the Spire 2 card rankings.
Across 6 recorded runs, decks running it win 0.0% of the time, trailing the 12.6% average by 12.6%. It’s a more selective pick, turning up in just 1.2% of decks that could run it. Regent players keep it in 1.8% 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 0.0% swing in win rate. It also has strong chemistry with the relic Divine Right, which moves its win rate by 0.0%. At - energy, it’s upgraded in 0.0% of runs and usually joins the deck around floor 22.
That’s 0 wins, 6 deaths, and 0 abandoned runs with it in the deck. Read on for Lantern Key’s complete synergy, class, and threat breakdown to decide whether it earns a slot in your Quest run.
Lantern Key Win Rate & Pick Rate
Lantern Key’s 0.0% win rate trails the 12.6% all-deck average by 12.6%, the gap charted below.
Run Outcomes with Lantern Key
Lantern Key has 0 wins and 6 losses over 6 tracked runs (0.0% won); abandoned runs count as losses.
- Wins 0.0%
- Losses 100.0%
Best Cards to Pair with Lantern Key
Ranked by win-rate lift, Lantern Key performs best alongside Ascender's Bane (0.0%), Defend (0.0%), and Falling Star (0.0%).
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Lantern Key Win Rate by Class
Lantern Key is played across 3 classes, led by Regent (0.0%), Necrobinder (0.0%), and Silent (0.0%) by win rate.
Best Relics for Lantern Key
Lantern Key pairs best with the relics Divine Right (0.0%), ranked by win-rate lift.
Based on small co-occurring samples — treat these as early signals, not final verdicts.
Lantern Key Card Details
Lantern Key is a quest quest costing - energy; it’s upgraded in 0.0% of runs and usually picked up by floor 22.
Unlocks a special event in the next Act.
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Lantern Key – Frequently Asked Questions
Is Lantern Key good in Slay the Spire 2?
Across 6 tracked runs, Lantern Key has a 0.0% win rate — +12.6% below the average deck. Win rate reflects how often runs that include the card end in victory.
What does Lantern Key do in Slay the Spire 2?
Lantern Key costs - energy. Unlocks a special event in the next Act.
What class is Lantern Key in Slay the Spire 2?
Lantern Key is a Quest Quest Quest.
Is Lantern Key worth upgrading in Slay the Spire 2?
Lantern Key can be upgraded at a rest site to improve its effect.
What is the best relic for Lantern Key?
In tracked runs, Lantern Key has performed best alongside Divine Right, which lifts its win rate by 0.0% over 3 runs together.
See Also
Compare Lantern Key with the rest of the best Slay the Spire 2 cards, relics, and classes below.