Rare Skill
Eidolon
NecrobinderCost
2
Effect
Exhaust your Hand.
If 9 cards were Exhausted this way, gain 1 Intangible.
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Cards
577 cards across five classes, most with an upgraded Plus version
Data from build 23811903, updated
Overview
Five classes split Slay the Spire 2’s card pool between them, Ironclad, Silent, Defect, Regent, and Necrobinder, plus a Colorless pool anyone can draft from. Every card you draft carries one of four rarity tiers (Common, Uncommon, Rare, or Ancient), a type (Attack, Skill, or Power), and a set Energy cost. Upgrade one and it almost always flips to a Plus version, 564 of the game’s 577 cards do, usually a straight damage, Block, or cost improvement that makes an early pickup worth keeping all run. Knowing which cards have the best Plus upgrades is the difference between a card you cut turn one and one you build your deck around.
Rarity & Energy Cost
Four Rarity Tiers
Every deckbuilding card carries one of four rarities, Common, Uncommon, Rare, or Ancient. Ancient sits at the top, the rarity you see least often and the one most likely to shape a run when it turns up. That same rarity field also tags cards you don’t pick from a pool, like Basic (the Strike and Defend starters every class opens with), Curse, Status, Event, Quest, and Token. Don’t count those as a fifth tier; they’re just labels for what kind of card you’re looking at.
Energy Cost
Energy is the resource that caps how many cards you can play in a turn, and most cards cost a flat number between 0 and 9. A handful, like Cascade and Dirge, cost X instead: play one and it burns every point of Energy you have left, with the effect scaling to match. Upgrading a card to its Plus form sometimes shaves a point off the cost rather than boosting the effect, and that can matter more than the stat bump once your deck gets expensive to run.
The Card Pool
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