Status chance

Table of contents

  1. Mechanics
    1. Special values
    2. Formula
  2. Notes

Mechanics

Status RNG is advanced before any check is performed. The RNG arrays used are 52-58 for party members (RNG52 for Tidus, RNG53 for Yuna, etc.), 59 for Seymour and Aeons, 60-67 for monsters (RNG60 for the monster in slot 1, RNG61 for the monster in slot 2, etc.).

Special values

A status landing chance of 255 or 254 and a status resistance of 255 are special values that are used for various checks:

  • if the action/item status landing chance is 255 the status always applies regardless of immunity;
  • if status resistance is 255 the target is considered immune and the status doesn’t apply;
  • if the action/item status landing chance is 254 the status is applied regardless of resistance/RNG.

Formula

If all of the checks fail the game calculates the actual status chance and compares it to the RNG value:

status chance = action/item status landing chance - target status resistance
status rng = rng value MOD 101
if status chance > status rng then apply the status

Notes

For actions/items that apply multiple status effect the game checks them one by one, repeating the steps above; the order in which the statuses are checked is the following:

Death, Zombie, Petrify, Poison, Power Break, Magic Break, Armor Break, Mental Break, Confuse, Berserk, Provoke, Threaten, Sleep, Silence, Dark, Protect, Shell, Reflect, Nulblaze, Nulfrost, Nulshock, Nultide, Regen, Haste, Slow

Actions and items that apply multiple statuses on multiple targets apply each status to the target on the first slot, then the second slot, etc.

For -touch weapons the status landing chance is 50.

For Break and Attack Skills and for -strike weapons the status landing chance is 100, and since the RNG value is a number between 0 and 100 there is a 1/101 chance for the status not to apply on monsters with 0 resistance (if status rng is 100).

For Buster Skills and status items (Silence Grenades, Smoke Bombs, etc.) the status landing chance is 254 so they always apply unless the target is immune (255 resistance), even if the target resistance is 254 the status is applied.

Petrify Grenade and Stone Breath check for Petrify status chance and if the target is petrified a check for Shatter chance is performed (monsters always Shatter when petrified). For example, in the Wendigo fight using a Petrify Grenade when every monster is alive advances status RNG 5 times: Petrify chance for Guado A, Shatter chance for Guado A, Petrify chance for Wendigo, Petrify chance for Guado B, Shatter chance for Guado B.

Using Phoenix Downs on Undead monsters (like Fallen Monk and Evrae Altana) doesn’t advance status RNG.