Free Run Tool

Compare Slay the Spire 2 cards and relics

Put two entries next to each other before a reward or shop decision. Check exact cost, class, rarity, text, upgrade, pool, and price without switching between tabs.

Quick rule: compare the job each option solves in your current run. A lower-cost card that fixes the next fight can be better than a rarer payoff with no support.

Comparison workbench

Choose two cards to inspect side by side

Compare exact fields first. The stronger pick still depends on your deck, route, Energy, and next fight.

Side-by-side facts for Demon Form and Corruption
FieldDemon FormCorruption
CharacterIroncladIronclad
TypePowerPower
RarityRareAncient
Cost3 Energy3 Energy
Base textAt the start of your turn, gain 2 Strength.Skills cost 0 Energy. Whenever you play a Skill, Exhaust it.
UpgradeAt the start of your turn, gain 3 Strength.No separate upgraded text in the current data set
Damage
Block

How to use the result

Facts first, run context second

1. Check timing

Can you afford the Energy or HP cost on the turn the option matters?

2. Name the job

Decide whether you need damage, Block, scaling, draw, or consistency.

3. Check the route

Value the next elite, boss, shop, and campfire instead of an abstract tier.

Quick answers

Comparison tool FAQ

Can this tool tell me which card is always better?

No. It compares current factual fields. The better pick depends on your deck, Energy, draw, route, character, and next fight.

Does the comparison include beta changes?

The base comparison uses the v0.107.1 main-branch database. Open an entity page to see any separately tracked beta-change note.

Can I share a comparison?

Yes. Choose two entries and use Copy comparison link. The selected type and entries stay in the URL.