Database 7

Slay the Spire 2 Mechanics Keyword Dictionary

Need a keyword fast? This page keeps every current card keyword in one vertical list, shows where the label appears on the card, and links to cards that actually use it.

7Defined keywords
173Cards using them
11Pools represented
28Upgrade-added cases

Use This Library

Use the mechanics dictionary for literal wording, not for full-system theory

The page is here to settle exact keyword meaning quickly, then push you to the right page above it.

First read

Confirm the printed rule, then leave

A good mechanics page settles the literal wording fast and gets out of the way. If you stay here looking for deck theory or route planning, you are already on the wrong layer.

When to use it

When this page helps

Use this page when the question is what a keyword literally means, where it appears on the card, and whether the upgrade changes when the rule turns on. It is strongest when one missing word is about to poison a draft or combat read.

Common misread

Most common misread

The usual failure is treating a keyword page like a full mechanics encyclopedia. It is not. A clean glossary settles the printed rule. It does not explain every combat state, power interaction, or archetype built on top of it.

Boundary

What this page cannot replace

The glossary does not tell you whether a card is good, whether a power package is stable, or whether the route can afford the line. Those calls belong to the databases, guides, and tools one level above it.

Real use example

Use it when one word changes the pick

A real line is confirming how a keyword turns on, then jumping back to the card or power page once the wording dispute is gone and the deckbuilding call becomes honest again.

Go deeper next

Use the narrower page once the lookup is done

How to use this page

Read the keyword, then read the cards

Start with the exact rules line. Then check whether the keyword is printed before or after the main text box, and open a few real cards to see the rule in play.

5 keywordsBefore rules text

Before rules text

These keywords show up before the main rules box, so you read them before the card effect.

2 keywordsAfter rules text

After rules text

These keywords sit after the rules box and usually describe what happens to the card once it resolves or leaves your hand.

Database Editorial

A Keyword Dictionary Only Helps If It Stays Literal

Mechanics pages turn to sludge when they drift from exact wording into vague player memory. This one is supposed to keep every current card keyword tied to its printed rule line, placement on the card, representative examples, and upgrade-only cases that people routinely misread.

Reviewed2026-03-28
Why this page matters

Keyword arguments usually start with one missing word

This glossary matters because small wording differences produce large gameplay mistakes. With 7 current keywords and 173 cards using them, the real value is not the count. It is the ability to see the exact rules line, where the keyword is printed, and which real cards carry it.

That keeps the page grounded. A keyword dictionary should reduce confusion, not inflate it with fan-theory wording. If you need a broader combat rule, the site should send you elsewhere instead of pretending one glossary entry can explain the whole game.

Defined keywords7Cards using them173Pools represented11Upgrade-added cases28
How this page is verified

The glossary is tied to live keyword entries and linked cards

Each keyword entry comes from the current mechanics dataset, which already maps the rule text, placement on the card, pool breakdown, featured card examples, full card rollup, and upgrade-only cases. The page does not invent alternate wording when the printed rule is already enough.

That is also why the examples matter. Real cards anchor the definition. Instead of pretending the keyword exists in a vacuum, the glossary shows who uses it, whether the keyword appears on base or upgraded frames, and how concentrated it is across the current pools.

  • Placement labels separate keywords printed before rules text from keywords printed after it.
  • Upgrade-only cases stay explicit so the glossary does not grant rules too early.
  • Pool breakdown is descriptive, not a balance judgment.
What actually matters

Exact wording, placement, and upgrade state carry the real value

The most useful question on a keyword page is usually not "what is the theme?" It is "what does the printed line actually say, and when does that line appear on the card?" Placement helps because some keywords are part of the card frame language while others sit after the main rules box and behave differently in practice.

Upgrade state matters just as much. A keyword that only appears after upgrade is not active on the base card, no matter how often players mentally collapse the two versions into one. This page keeps those upgrade-added cases visible because that specific mistake keeps costing real runs.

  • Read the literal rule line before you infer anything from card memory.
  • Check whether the keyword is base, upgrade, or both before planning around it.
  • Use representative cards when the wording is clear but the gameplay picture is still fuzzy.
Common mistakes / traps

The page is built to kill sloppy rule compression

The classic trap is collapsing two related mechanics into one because they both feel like "discard" or "temporary." That is how players mix up Ethereal, Exhaust, Retain, or any other nearby concept and then blame the game when the run line breaks.

The second trap is reading a concentrated pool distribution as if the glossary were making a design claim. It is not. The page is only telling you where the keyword currently appears. It is not promising even spread, future support, or hidden variants outside the live set.

  • Do not merge nearby keywords just because their play pattern feels similar.
  • Do not assume upgrade-added keywords exist on base copies.
  • Do not confuse a card-keyword dictionary with a full combat-mechanics encyclopedia.
Related high-value pages

Open the page that handles the layer above the literal keyword

Once the glossary settles the wording, these pages handle deckbuilding, power-state interaction, and character context. That is a cleaner split than forcing the dictionary to pretend it is also a strategy guide.

Maintenance Signals

Who Maintains This Page

Reference pages need a visible owner and scope, otherwise they read like unmaintained dumps. These signals say what data surface is being maintained and what the page deliberately does not promise.

Maintained bySTS2 Calculator Reference Desk

Independent fan-made editors and data maintainers. This is not an official Slay the Spire 2 or Mega Crit property.

Responsible editorSTS2 Calculator Site Operator

Final site operator and responsible editor. Final contact for corrections, rights notices, and maintenance triage via shwuhen@gmail.com.

Last reviewedMarch 28, 2026

Visible copy, links, and page-level signals were checked in the latest review pass.

Patch verifiedCurrent Early Access keyword dataset

If a patch moves the numbers, wording, or assumptions behind this page, the page gets revised, narrowed, or rechecked again.

Applies toKeyword glossary wording, card-linked examples, and upgrade-only rule visibility exposed on this page.

If the site does not expose a stable property cleanly yet, the page should point you deeper instead of inventing certainty.

DisclaimerMaintained reference, not a substitute for full run context.

Database and glossary pages surface the live site dataset cleanly, but they do not replace deck, route, or encounter judgment.

Filter the dictionary

There are only seven current card keywords. The filters are here to help you jump to the right entry quickly, not to bury the page in extra UI.

Showing all 7 card keywords.

98 cardsAfter rules text

Exhaust

Removed until the end of combat.

Exhaust shows up on 98 cards across 10 pools. 98 base versions and 81 upgraded versions carry it. The biggest pool is Colorless with 18 cards.

Ironclad · 11Silent · 11Defect · 15Necrobinder · 13Regent · 7Colorless · 18Token · 9Status · 4Curse · 1Event · 9

Representative cards

Show all 98 cards with Exhaust
Demonic ShieldBase keywordDominateBase + upgradeFeedBase + upgradeFiend FireBase + upgradeForgotten RitualBase + upgradeImperviousBase + upgradeInfernal BladeBase + upgradeMolten FistBase + upgradeNot YetBase + upgradeOfferingBase + upgradeTrembleBase + upgradeAdrenalineBase + upgradeAssassinateBase + upgradeBackstabBase + upgradeBlade DanceBase + upgradeCalculated GambleBase + upgradeExposeBase + upgradeMalaiseBase + upgradeMirageBase + upgradeNightmareBase + upgradePiercing WailBase + upgradeThe HuntBase + upgradeBoot SequenceBase + upgradeChillBase keywordDouble EnergyBase + upgradeEnergy SurgeBase + upgradeGenetic AlgorithmBase + upgradeHologramBase keywordHotfixBase keywordIgnitionBase keywordRainbowBase keywordRebootBase + upgradeSignal BoostBase + upgradeSupercriticalBase + upgradeSynchronizeBase keywordVoltaicBase keywordWhite NoiseBase + upgradeAfterlifeBase + upgradeDirgeBase + upgradeDredgeBase + upgradeGlimpse BeyondBase + upgradeGraveblastBase keywordLegion of BoneBase + upgradePutrefyBase + upgradeReanimateBase + upgradeShared FateBase + upgradeThe ScytheBase + upgradeTime's UpBase + upgradeTransfigureBase keywordWispBase + upgradeBig BangBase + upgradeBombardmentBase + upgradeBundle of JoyBase + upgradeDecisions, DecisionsBase + upgradeGUARDS!!!Base + upgradeKnow Thy PlaceBase keywordRoyal GambleBase + upgradeAlchemizeBase + upgradeAnointedBase + upgradeDark ShacklesBase + upgradeDiscoveryBase keywordDramatic EntranceBase + upgradeHuddle UpBase + upgradeJack of All TradesBase + upgradeMaster of StrategyBase + upgradeMimicBase keywordPanic ButtonBase + upgradeProductionBase + upgradeProlongBase keywordPurityBase + upgradeScrawlBase + upgradeSecret TechniqueBase keywordSecret WeaponBase keywordShockwaveBase + upgradeThinking AheadBase keywordDeprecated CardBase + upgradeFuelBase + upgradeLuminesceBase + upgradeMinion Dive BombBase + upgradeMinion SacrificeBase + upgradeMinion StrikeBase + upgradeShivBase + upgradeSoulBase + upgradeSweeping GazeBase + upgradeDebrisBase + upgradeSlimedBase + upgradeToxicBase + upgradeWitherBase + upgradeSpore MindBase + upgradeApotheosisBase + upgradeApparitionBase + upgradeDistractionBase + upgradeEnlightenmentBase + upgradeMetamorphosisBase + upgradeNeow's FuryBase + upgradeRelaxBase + upgradeWhistleBase + upgradeWishBase + upgrade
18 cardsBefore rules text

Ethereal

If this card is in your Hand at the end of this turn, it is Exhausted.

Ethereal shows up on 18 cards across 7 pools. 18 base versions and 15 upgraded versions carry it. The biggest pool is Necrobinder with 8 cards.

Defect · 1Necrobinder · 8Regent · 2Token · 1Status · 2Curse · 3Event · 1

Representative cards

Show all 18 cards with Ethereal
25 cardsBefore rules text16 upgrade-added

Innate

Start each combat with this card in your Hand.

Innate shows up on 25 cards across 8 pools. 16 cards add it only after upgrade. The biggest pool is Silent with 6 cards.

Ironclad · 2Silent · 6Defect · 3Necrobinder · 1Regent · 4Colorless · 4Curse · 2Event · 3

Cards that gain Innate on upgrade

Representative cards

Show all 25 cards with Innate
25 cardsBefore rules text

Unplayable

Unplayable cards cannot be played.

Unplayable shows up on 25 cards across 3 pools. 25 base versions and 25 upgraded versions carry it. The biggest pool is Curse with 16 cards.

Status · 6Curse · 16Quest · 3

Representative cards

Show all 25 cards with Unplayable
24 cardsBefore rules text12 upgrade-added

Retain

Retained cards are not discarded at the end of turn.

Retain shows up on 24 cards across 8 pools. 12 cards add it only after upgrade. The biggest pool is Necrobinder with 10 cards.

Silent · 2Necrobinder · 10Regent · 2Colorless · 5Token · 2Status · 1Curse · 1Event · 1

Cards that gain Retain on upgrade

Representative cards

Show all 24 cards with Retain
8 cardsBefore rules text

Sly

If this card is discarded from your Hand before the end of your turn, play it for free.

Sly shows up on 8 cards across 1 pools. 8 base versions and 8 upgraded versions carry it. The biggest pool is Silent with 8 cards.

Silent · 8

Representative cards

Show all 8 cards with Sly
7 cardsAfter rules text

Eternal

Cannot be removed or transformed from your Deck.

Eternal shows up on 7 cards across 2 pools. 7 base versions and 7 upgraded versions carry it. The biggest pool is Curse with 6 cards.

Necrobinder · 1Curse · 6

Representative cards

Show all 7 cards with Eternal

FAQ

Common rules misses

The usual misses are simple: mixing up end-of-turn loss with post-play removal, or forgetting that some upgrades add the keyword later.

What is the practical difference between Ethereal and Exhaust?

Ethereal checks whether the card is still sitting in your hand at end of turn. Exhaust describes where the card goes once it resolves. One is a hand-state timer. The other is a post-play destination.

Why do some keywords only matter after the upgrade?

A small slice of cards gains Innate or Retain only on the upgraded frame. If the keyword is not printed on the base version, you do not get the rule early just because the upgraded card has it later.

Does this page cover every game mechanic?

No. This page is the card-keyword dictionary. Broader combat states, powers, and encounter rules belong on the Powers Database, card pages, or the relevant planner pages.

Why is Sly concentrated in one pool?

Because the current live card set keeps that keyword tightly focused. The glossary shows where the keyword actually appears instead of pretending every mechanic is evenly distributed.