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Class change/Family Computer games
This subpage covers the class change stats for the two Family Computer games: Fire Emblem: Shadow Dragon & the Blade of Light and Fire Emblem Gaiden.
Fire Emblem: Shadow Dragon & the Blade of Light
In Shadow Dragon & the Blade of Light, class change is achieved through the use of items specific to each class. Compared to later installments, only eleven classes—six base and five advanced—are connected into class change trees, with the vast majority—including the Lord—incapable of promotion at all.
All stat increases when changing class are based solely on the promoted class's base stats; if a unit's given stat prior to promotion is lower than the promoted class's base stat in the same, the stat increases by an amount sufficient to reach the promoted class's base stat. If a unit's current stat is higher than the matching promoted base stat, the stat is unmodified.
Class change options and stat gains in Shadow Dragon & the Blade of Light  

Item  Base class  Advanced class  HP  Str  Skl  WLv  Spd  Def  Res  Mov  
Knight Crest  Cavalier  Paladin  +(x to 22)  +(x to 8)  +(x to 7)  +(x to 10)  +(x to 11)  +(x to 9)  +0  +(x to 10)  
Hero Crest  Mercenary  Hero  +(x to 24)  +(x to 8)  +(x to 14)  +(x to 10)  +(x to 14)  +(x to 8)  +0  +0  
Orion's Bolt  Archer  Sniper  +(x to 24)  +(x to 7)  +(x to 10)  +(x to 10)  +(x to 14)  +(x to 7)  +0  +(x to 7)  
Bishop's Ring  Mage  Bishop  +(x to 22)  +(x to 3)  +(x to 1)  +(x to 10)  +(x to 14)  +(x to 8)  +0  +0  
Curate  +(x to 22)  +(x to 3)  +(x to 1)  +(x to 10)  +(x to 14)  +(x to 8)  +0  +(x to 6)  
Skydrake Whip  Pegasus Knight  Wyvern Knight  +(x to 22)  +(x to 9)  +(x to 3)  +(x to 10)  +(x to 6)  +(x to 14)  +0  +(x to 10) 
Fire Emblem Gaiden
In Gaiden, class changing is achieved by visiting any Mila Shrine. By interacting with the female statue in the center of each, the player is prompted as to whether they want to promote each unit capable of promoting at the time. Each class has a set threshold level for class changing; once they reach this, the player is notified when the unit levels up to the correct level. Gaiden is the first game to feature trainee classes (albeit only one, the Villager) and thirdtier advanced classes.
Alm and Celica both promote in events: Celica promotes to Princess by talking to a woman in Grieth's Fort after clearing it in Act 3, and Alm promotes to Hero when Celica talks to Halcyon in the Sage's Hamlet in Act 4. While Celica's initial class, Priestess, is not exclusive to her, no other Priestesses can promote to Princess. When promoting a Villager, the player is randomly offered a class to promote it to; if the option is not to the player's wishes, they may cancel and try again to get a different offered class. When a Dread Fighter promotes to Villager, they can promote again to any of the five options available to the Villager as usual, looping the process of the class change tree from the beginning.
All stat increases when changing class are based solely on the promoted class's base stats; if a unit's given stat prior to promotion is lower than the promoted class's base stat in the same, the stat increases by an amount sufficient to reach the promoted class's base stat. If a unit's current stat is higher than the matching promoted base stat, the stat is unmodified.
Level thresholds
Class change options and level thresholds in Gaiden  

Trainee class  Level threshold  Base class  Level threshold  Advanced class  Level threshold  Adv. class (tier 3)  Level threshold  Trainee class 
Fighter  Event (Act 4) 
Hero  
Priestess  Event (Act 3) 
Princess  
Villager  3  Mercenary  7  Myrmidon  10  Dread Fighter  10  Villager 
Cavalier  7  Paladin  10  Gold Knight  
Soldier  7  Knight  10  Baron  
Archer  7  Sniper  10  Bow Knight  
Mage (M)  12  Sage  
Cleric  12  Saint  
Mage (F)  20  Priestess  
Pegasus Knight  12  Falcon Knight 
Stat modifications
Class change options and stat gains in Gaiden  

Starting class  Promoted class  HP  Str  Skl  Spd  Luck  Def  Res  Mov 
Fighter  Hero  +(x to 36)  +(x to 16)  +(x to 14)  +(x to 14)  +(x to 10)  +(x to 10)  +(x to 4)  +1 
Priestess  Princess  +(x to 36)  +(x to 5)  +(x to 1)  +(x to 1)  +0  +(x to 1)  +0  +0 
Villager  Mercenary  +(x to 24)  +(x to 8)  +(x to 8)  +(x to 10)  +0  +(x to 4)  +(x to 1)  +0 
Cavalier  +(x to 24)  +(x to 9)  +(x to 3)  +(x to 5)  +0  +(x to 5)  +(x to 2)  +3  
Soldier  +(x to 26)  +(x to 10)  +(x to 1)  +(x to 3)  +0  +(x to 5)  +0  +0  
Archer  +(x to 24)  +(x to 9)  +(x to 1)  +(x to 2)  +0  +(x to 3)  +0  +0  
Mage (M)  +(x to 28)  +(x to 8)  +(x to 3)  +(x to 4)  +0  +(x to 5)  +(x to 8)  +0  
Mercenary  Myrmidon  +(x to 30)  +(x to 11)  +(x to 11)  +(x to 14)  +0  +(x to 7)  +(x to 6)  +1 
Myrmidon  Dread Fighter  +(x to 36)  +(x to 15)  +(x to 16)  +(x to 18)  +0  +(x to 11)  +(x to 15)  +2 
Dread Fighter  Villager  +0  +0  +0  +0  +0  +0  +0  3 
Cavalier  Paladin  +(x to 28)  +(x to 12)  +(x to 5)  +(x to 8)  +0  +(x to 8)  +(x to 5)  +1 
Paladin  Gold Knight  +(x to 40)  +(x to 18)  +(x to 7)  +(x to 12)  +0  +(x to 13)  +(x to 6)  +1 
Soldier  Knight  +(x to 34)  +(x to 16)  +(x to 2)  +(x to 2)  +0  +(x to 12)  +(x to 1)  +0 
Knight  Baron  +(x to 40)  +(x to 22)  +(x to 6)  +(x to 4)  +0  +(x to 18)  +(x to 7)  +0 
Archer  Sniper  +(x to 30)  +(x to 12)  +(x to 6)  +(x to 6)  +0  +(x to 6)  +(x to 2)  +1 
Sniper  Bow Knight  +(x to 40)  +(x to 16)  +(x to 8)  +(x to 8)  +0  +(x to 10)  +(x to 6)  +3 
Mage (M)  Sage  +(x to 32)  +(x to 12)  +(x to 8)  +(x to 7)  +0  +(x to 6)  +(x to 9)  +0 
Cleric  Saint  +(x to 30)  +(x to 10)  +(x to 1)  +(x to 2)  +0  +(x to 8)  +(x to 3)  +1 
Mage (F)  Priestess  +(x to 36)  +(x to 5)  +(x to 1)  +(x to 1)  +0  +(x to 1)  +0  +0 
Pegasus Knight  Falcon Knight  +(x to 40)  +(x to 15)  +(x to 1)  +(x to 5)  +0  +(x to 12)  +(x to 12)  +1 
References
See also
 Class change/Super Famicom games
 Class change/Game Boy Advance games
 Class change/GameCube and Wii games
 Class change/Nintendo DS games
 Class change/Nintendo 3DS games
 Class change/Nintendo Switch games
 Class change/Spinoff games
Fire Emblem Gaiden  

