fgo-docs

Crit stars

Crit stars formula

dropChancePerHit =
        (
(30)      baseStarRate
(31)      + firstCardBonus + (cardStarValue * max(1 + cardMod, 0))
(32)      + serverRate
(33)      + starDropMod
(34)      + enemyStarDropMod
(35)      + criticalModifier
        )
(36)    * overkillModifier
(37)    + overkillAdd

Mapping of damage formula terms to buff actions:

• cardMod = atkSvt.commandStarAtk - defSvt.commandStarDef
• starDropMod = atkSvt.criticalPoint
• enemyStarDropMod = defSvt.criticalStarDamageTaken
  • Previously: enemyStarDropMod = -defSvt.criticalPoint

Other constants lookup:

• baseStarRate: NiceServant.starGen
• firstCardBonus, cardStarValue:
  • firstCardBonus: NiceCard.card.order.addCritical
  • cardStarValue: NiceCard.card.order.adjustCritical
• serverRate: sent from server cache.replaced.battleInfo.userSvt.starRate
• criticalModifier: NiceConstant.CRITICAL_STAR_RATE = 0.2
• overkillModifier: NiceConstant.OVER_KILL_STAR_RATE = 1
• overkillAdd: NiceConstant.OVER_KILL_STAR_ADD = 0.3