| Rarity | Base Chance | Effective Chance | Expected Rolls | 90% Roll |
|---|
Planning model from anime-dice_tools-design.md (Tool 2). Common-Legendary base rates are [T2-community][VERIFIED-1-ALTERNATIVE]; Mythic ~0.49% is [INFERRED-FROM-MECHANICS] (residual); Secret <0.01% is [T2-community][VERIFIED-2-SOURCES]. Re-verify after major patches.
Methodology and assumptions
Method: applies the verified 7-rarity base table (Common 50%, Uncommon 25%, Rare 15%, Epic 7%, Legendary 2.5%) to a geometric-distribution model. Effective chance = base * L, capped at 1. Expected rolls = 1 / p. Percentile = ceil(log(1 - T) / log(1 - p)). Assumptions: Mythic ~0.49% [INFERRED-FROM-MECHANICS] as residual; Secret <0.01% [INSUFFICIENT DATA]. Applicability: use to budget Lucky Spins or Trait Rerolls for Mythic/Transcendent hunts; verify exact rates after patches.
Sources
- anime-dice_tools-design.md — Tool 2 (Roll Probability & Expected-Rolls Engine)
- Sportskeeda Anime Dice Traits guide
