Slay the Spire 2 Deck Ranker
Build an STS2 deck, rank it for Act 1, 2, or 3, and get automatic feedback on strengths, weaknesses, and possible upgrades.
Deck Builder
Add cards and relics, then the ranker will evaluate the deck for the selected act.
Card Picker
Showing the first 5 matching cards. Tap or click a card to add it.
Gain Dexterity. Gain Thorns.
Poison is triggered additional .
Shivs deal additional damage.
Draw cards. Discard 1 card.
Deal damage. Add a 0 copy of this card into your Discard Pile.
Relic Picker
Showing the first 5 matching relics.
Current Deck
Selected Relics
Act 1 Rank
Fast-fight damage and ability to clear regular combats cleanly.
Reliable block, mitigation, and staying power.
Long-fight growth for elites, bosses, and slower combats.
How often you can find and execute your important lines.
Energy smoothness, low clunk, and playable turn cycles.
Whether the deck is a focused engine instead of a random pile.
Strengths
Weaknesses
What This Deck Needs Next
Suggested Cards
Deck Builder
Add cards and relics, then the ranker will evaluate the deck for the selected act.
Card Picker
Showing the first 5 matching cards. Swipe sideways to browse.
Gain Dexterity. Gain Thorns.
Poison is triggered additional .
Shivs deal additional damage.
Draw cards. Discard 1 card.
Deal damage. Add a 0 copy of this card into your Discard Pile.
Relic Picker
Current Deck
Selected Relics
STS2 Deck Ranker FAQ
Quick answers about how this deck evaluation tool works.
What does the STS2 Deck Ranker do?
This tool helps you evaluate a Slay the Spire 2 deck by scoring its damage, defense, scaling, consistency, efficiency, and synergy for Act 1, 2, or 3.
Does the deck ranker suggest upgrades?
Yes. The tool automatically highlights deck strengths, weaknesses, what the deck needs next, and suggested cards that could improve the build.
Can I use this for different acts?
Yes. You can switch between Act 1, Act 2, and Act 3 so the scoring weights match the stage of the run more closely.
Does this work like an STS2 boss checker?
Not yet. This version is act-based. Boss-specific checking is planned as a future expansion so decks can be judged against specific encounters.