Constitution

"Aid" redirects here. For the staff from Heroes, see Aid (staff).

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The constitution stat help prompt in Fire Emblem: The Blazing Blade.

Constitution (Japanese: 体格 Build), abbreviated as Con or Cn, also known as Build, abbreviated Bld, is a statistic applied to units that represents that unit's physical size. Its original function was to alleviate the effects of the weight of the unit's currently-equipped weapon on that unit's attack speed in battle—prior to the statistic's introduction in Thracia 776, units' attack speed bore the full brunt of a weapon's weight, often crippling users of heavy weapon types such as axes. Constitution also affects whether or not units can rescue each other: a unit with a higher constitution can rescue one with lower, but not vice versa.

The Constitution stat lost many of its functions in Path of Radiance: in the attack speed calculation, it was replaced by Strength; the rescuing calculation instead used the new weight stat; and Aid was removed entirely. It, however, retained some niche usage in the calculations for the Colossus and Shove skills, in Path of Radiance and Radiant Dawn respectively.

Constitution was removed entirely in Shadow Dragon, and did not reappear until Engage.

Calculations

Attack speed

Main article: Attack speed

Game	Formula	Notes
Thracia 776	Speed − (Weapon weight − Constitution)	Applies to physical weaponry only. If (Weight − Con) is negative, the result is taken to be 0.
The Binding Blade	Speed − (Weapon weight − Constitution)	If (Weight − Con) is negative, the result is taken to be 0.
The Blazing Blade	Speed − (Weapon weight − Constitution)	If (Weight − Con) is negative, the result is taken to be 0.
The Sacred Stones	Speed − (Weapon weight − Constitution)	If (Weight − Con) is negative, the result is taken to be 0.
Engage	Speed − (Weapon weight − Build)	If (Weight − Bld) is negative, the result is taken to be 0.

Aid

The Aid stat exists only in the Game Boy Advance games, and its formulae are identical across all three games. Its main purpose is to determine whether or not one unit may Rescue another.

Foot unit's Aid:	Constitution − 1
Male mounted unit's Aid:	25 − Constitution
Female mounted unit's Aid:	20 − Constitution

Ability to rescue

Main article: Rescue (command) § Calculations

Game	Formula	Notes
Thracia 776	If [Unit A's Con] > [Unit B's Con], then Unit A can rescue Unit B.	Mounted units and ballista classes are considered to have 20 constitution.
The Binding Blade	If [Unit A's Aid] ≥ [Unit B's Con], then Unit A can rescue Unit B.	--
The Blazing Blade	If [Unit A's Aid] ≥ [Unit B's Con], then Unit A can rescue Unit B.	--
The Sacred Stones	If [Unit A's Aid] ≥ [Unit B's Con], then Unit A can rescue Unit B.	--

Other

Stealing

Main article: Steal

In Thracia 776, constitution affects the ability to steal. If a thief's constitution is greater than the weight of a weapon held by an enemy, the thief can steal that weapon (assuming that the thief is faster than the target).

Game	Formula	Notes
Thracia 776	If Thief's constitution > target weapon's weight	--

Colossus skill

Main article: Colossus

In Path of Radiance only, constitution affects the Colossus skill's ability to trigger.

Game	Formula	Notes
Path of Radiance	If user's constitution > target enemy's constitution	--

Ability to shove

Main articles: Shove and Smite

In Radiant Dawn only, a unit's constitution stat affects that unit's ability to use the Shove and Smite skills.

Game	Formula	Notes
Radiant Dawn	If [user's constitution + 2] > target's weight	--

Items affecting constitution

Items providing a permanent increase
	Item	Constitution increase	Games
	Body Ring	Permanent +3/+2 increase when used.	Thracia 776, The Binding Blade, The Blazing Blade, The Sacred Stones
	Statue Frag	Permanent +2 increase when used.	Path of Radiance, Radiant Dawn

Items and skills modifying the growth rate
	Item/skill	Constitution growth modification	Games
	Nál Scroll	+10% to growth rate when in inventory.	Thracia 776

Flavor text

Game	Text (English)	Text (Japanese)
The Binding Blade	Constitution, or physical size. Affects rescue.*	身体の大きさ　重さです 救出にかかわります
The Blazing Blade	Constitution, or physical size. Affects rescue.	身体の大きさです 救出などにかかわります
The Sacred Stones	Constitution, or physical size. Affects rescue.	身体の大きさです 救出などにかかわります
Path of Radiance	The unit's body size. This helps determine the unit's weight.	身体の大きさです 重量の目安になっています
Radiant Dawn (NTSC)	The unit's body size.	ユニット自身の体の大きさ
Radiant Dawn (PAL)	The unit's constitution.	--
Engage	Build. Prevents heavy weapons from slowing attack speed.	体格の良さ。高いほど重い武器を 装備しても速さが下がらなくなる

Trivia

• According to Taeko Kaneda, game designer of Path of Radiance, the reason that weight was introduced was due to confusion over what the constitution stat was supposed to represent. According to Kaneda, in the previous titles, constitution included armor and equipment, but this was ambiguous; thus, Path of Radiance separated a unit's constitution (before armor and equipment) from weight.

Etymology and other languages

Names, etymology, and in other regions
Language	Name	Definition, etymology, and notes
English	• Constitution • Build	• This name is used in The Blazing Blade, The Sacred Stones, and Radiant Dawn. • This name is used in Path of Radiance and Engage, though it is still abbreviated as "Cn" in some locations in the former game.
Japanese	体格	Build
Spanish	Constitución	Constitution
French	Constitution	Constitution
German	• Konstitution • Figur	• Constitution • Figure; used in Engage.
Italian	Costituzione	Constitution
Korean	체격	Build
Simplified Chinese	体格	Build
Traditional Chinese	體格	Build