Slay the Spire 2 Card Guide

Necro Mastery

Summon 5. Whenever Osty loses HP, ALL enemies lose that much HP as well.

Character
Necrobinder
Type
Power
Cost
2
Rarity
Rare

Should You Pick Necro Mastery?

This card becomes valuable when your run already supports its mechanic. Without the proper synergy density, it can slow down early deck development.

When to Pick

  • When your build already supports this mechanic
  • When you need scaling damage
  • When the card fits your draft direction

When to Skip

  • When your deck lacks synergy support
  • When it slows early combat
  • When it competes with stronger scaling cards

Builds That Use Necro Mastery

poison exhaust attack-combo

Related Relics & Potions

Relics that enhance this card Potions that support this strategy

Necro Mastery FAQ

Is Necro Mastery a good card in Slay the Spire 2?

It depends on your deck direction. Cards are strongest when their mechanic is supported by relics and other cards.