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Trait chance calculator

Estimate the probability of seeing a target trait at least once. This is transparent probability math—not a roll simulator and not a guarantee.

Calculate cumulative chance

Listed single-roll odds0.1%
Chance within 100 rolls9.5%
About 50% chance by693 rolls

Probability estimate: 1 − (1 − p)n. It assumes independent rolls and the listed community odds. It is not a guarantee, pity calculation, or spending recommendation.