Status effects (Cold Steel III - Reverie)

This page explains the mechanics of status effects (状態変化) in Trails of Cold Steel III, Trails of Cold Steel IV and Trails into Reverie.

Overview

A status effect is any alteration that applies to units in combat, characterized by an icon above the unit on the field, and an icon above their stats display in the user interface. Only one application of a particular status effect can be active on a unit.

Various effects can be applied through the use of arts, crafts, equipped quartz that modify the user's attacks, or by enemy skills. Status effects are classified depending on how they affect the unit: stat modifiers are effects that directly increase or reduce the unit's stats (STR, DEF, ATS, ADF, SPD and MOV), while abnormal status are other types of effects that can be beneficial or detrimental. Detrimental abnormal statuses are also referred as ailments.

Stat Modifiers

Stat modifiers can be stacked positively and negatively up to 3 times (S, M and L) in each direction, with the duration of the effect being that of the latest modifier applied. This means if a ↑S effect for a stat is applied on top of an existing ↑M effect, it would result in a ↑L effect, while if applied on top of an existing ↓M effect, the result would be a ↓S effect.

Stat modifiers now take into account equipment or quartz stat increases when calculating the modification. However, each stat is modified by a different amount:

	STR / ATS / SPD	DEF / ADF	MOV
	±15%	±25%	±50%
	±30%	±50%	±75%
	±45%	±75%	±100%

Duration

The duration of a status effect is determined by the type of effect and method of application. Most effects have a duration expressed in turns, but some effects are permanent until removed or the end of battle, or last only for a certain amount of attacks. Note that the turn to prepare an art will not count towards status effects' duration and the effect itself.

Status Vulnerability

Each enemy has a different set of vulnerabilities for each status effect (and stat reductions and AT Delay). The chance of inflicting a certain status effect is multiplied by the enemy's vulnerability to that status effect to obtain the final chance of inflicting it. The chance can go higher than 100%, making it more likely than usual to inflict that status effect. Player characters can resist status effects by equipping various pieces of equipment, which are guaranteed to resist the effect.

Delay Vulnerability

When a character has several sources of delay (from quartz and crafts) each source will roll the chance to apply according to the vulnerability independently of the others, meaning the total chance of applying delay is:
$Chance\ to\ delay=1-\left[1-\left({\frac {Vulnerability}{100}}\right)\right]^{Sources}$ However, if successful, the delay applied will only be the craft's delay and the highest delay from quartz sources.

List of Abnormal Status

Icon	Name	Effect	Duration
	Poison 毒	Take 10-15% of max HP as damage after every turn.	Wears off.
	Burn 炎傷	Take 10-15% (15-20% in Mech Battles) of max HP as damage after every turn. Overwrites Freeze.	Wears off.
	Blind 暗闇	Reduces ACC% and EVA% by 50%. Overwrites Insight.	Wears off.
	Seal 封技	Cannot use normal attacks, crafts, or S-Crafts.	Wears off.
	Mute 封魔	Cannot use orbal arts.	Wears off.
	Sleep 睡眠	Cannot act, takes critical damage from any attack.	Wears off, or until the character is attacked.
	Nightmare 悪夢	Same as sleep, but inflicts a random ailment when effect ends.	Wears off, or until the character is attacked.
	Faint 気絶	Cannot act, takes critical damage from all attacks.	Wears off.
	Freeze 凍結	Cannot act. Take 10-15% of max HP as damage after every turn. Overwrites Burn.	Wears off.
	Petrify 石化	Cannot act. 30% chance of instant K.O. if attacked.	Permanent until removed.
	Confuse 混乱	Prevents control, attacks enemy and ally alike.	Wears off.
	Charm 魅了	Prevents control, attacks allies and helps enemies.	Wears off.
	Vanish 消滅	Character cannot be selected or act. All EP lost.	Wears off.
	Balance Down バランスダウン	Doubles unbalance vulnerability.	Wears off.
	Link Break リンクブレイク	Character cannot form combat links.	Wears off.
	Break ブレイク	See Break.	Wears off.
	Enhanced 高揚	See Break.	Wears off or until broken.
	Stealth ステルス	Character cannot be targeted or damaged by enemy attacks. Physical attacks are guaranteed to deal critical damage.	Wears off or until character attacks.
	Insight 心眼	Increases ACC% and EVA% by 50%, and unbalance chance by 10%.	Wears off.
	Brandish 剣閃	Attacks and crafts deal an extra hit with partial damage based on unmodified base damage.	Wears off.
	Craft Guard 物理防御	Immunity to physical attacks, crafts, and S-Crafts.	Each hit blocked by this status reduces the duration by 1.
	Craft Reflect 物理反射	Reflects physical damage (25%) back to the attacker.	Each hit reflected by this status reduces the duration by 1.
	Art Reflect 魔法反射	Reflects magic damage (25%) back to the attacker.	Each hit reflected by this status reduces the duration by 1.
	Guard 完全防御	Immunity to all attacks.	Each hit blocked by this status reduces the duration by 1.
	Reflect 絶対反射	Reflects any damage (25%) back to the attacker.	Each hit reflected by this status reduces the duration by 1.
	HP Regen HP回復	Recover a % of max HP each turn.	Wears off.
	CP Regen CP回復	Recover an amount of CP each turn.	Wears off.
	Unleash 覚醒	Grants Rean Schwarzer new crafts and clears and prevents ailments.	Wears off.
	Weak ウィーク	Same as Balance Down, and elemental weaknesses are increased by 50%.	Wears off.
	Scorch 劫炎	Take 45-55% of max HP as damage after every turn. Overwrites Freeze, cannot be overwritten.	Wears off.
	Berserk	The character's attack increases, but they become uncontrollable and use normal attacks every turn.	30% chance to be removed every turn.
	Mark	The next physical hit taken from Swin Abel's attacks or crafts is guaranteed to be a critical hit.	Wears off, or until the character is attacked by Swin Abel.
	Deathblow 即死	Reduced to 0 HP instantly.	One-time effect.
—	K.O. 戦闘不能	Can't battle. All CP lost.	Permanent (even out of battle) until revived.