Unique Enemies in Fire Emblem:
- As a rule of thumb, most Tin Tyrant characters (with the exceptions of Rudolf from Gaiden and Vigarde from The Sacred Stones, who are respectively a Gold Knight and General) and most Final Boss characters (with the exceptions of Veld from Thracia 776 and Takumi from Fates: Conquest, who are respectively a Dark Bishop and Sniper) have their own unique classes. There are a few Evil Sorcerer characters with personal classes (Nergal from The Blazing Blade, Lyon from The Sacred Stones, Sephiran from Radiant Dawn, and Thales from Three Houses), but they're far less common.
- The Lord class and its promotions are near-exclusive to the player; they have only been borne by "Marth" in Awakening, Edelgard, Dimitri, Claude, and Judith in Three Houses, and Darios in Warriors as enemies.
- Fire Emblem: Mystery of the Emblem has a single Berserker (different from the axe-wielding Berserkers in later games, this one was a palette-swapped Hero) in Chapter 11, who drops one of the best swords in the game. The remake changed this enemy to a Swordmaster.
- Fire Emblem: The Blazing Blade:
- Corsairs, which only appear in one chapter and are effectively the same thing as Pirates, down to the same sprite. The only difference: If you hack a Corsair in your team, they can't Promote.
- Most enemies are male, apart from representatives of classes that are Always Female like Troubadours. There are only a handful of exceptions to this in the entire game: a lone female Sniper in "Valorous Roland", several female Nomads in "The Dread Isle", and a pair of female Druids seen in the Hector Hard Mode version of "Cog of Destiny." The Sniper and Nomads aren't anything special, but the Druids are real bosses in mook clothing, as they're packing status-ailment inflicting staves and have such a high Magic stat that their attack range for them is 20 tiles!
- Jerme is the only enemy Assassin in the game, probably because their One-Hit Kill ability would be too unfair for enemies to wield. (There is another antagonistic Assassin, Jaffar, but he pulls a Heel–Face Turn before you get to fight him.)
- Kishuna is the only character to bear the Magic Seal class, which nullifies all magic within a 10-space radius.
- Fire Emblem: The Sacred Stones:
- The Fleet class only appears in Chapter 10 of Ephriam's route, and there are only two on the map. They're something unique in the series: small ships that can only move on ocean tiles (with a tiny movement range) and attack using Ballistae. Gorgon Eggs are also exclusive to one map, but it's one that can be repeated. (They also have the interesting distinction of always giving 50 exp, regardless of their killer's level.)
- There is only one enemy unit each from the Rogue and Wyvern Knight classes in the entire game; those being Rennac and Valter respectively. The lack of generic enemy rogues and wyvern knights is due to their skills; generic enemy thieves can already steal from chests, making the use of generic rogues unnecessary, while the Pierce skill exclusive to wyvern knights makes surviving a hit from a generic one too difficult, especially if a unit already has low defense. The former can be recruited by either letting L'arachel persuade him or have Eirika/Ephraim pay him 9,980 gold, while the latter is available in Creature Campaign as a bonus.
- Fire Emblem: Shadow Dragon almost exclusively uses newly introduced classes as enemies in the newly-introduced gaiden chapters. Generic Berserkers, Warriors, Swordmasters, and Sorcerers only appear in Chapter 24x, while Dark Mages are only seen in the arena. The only named enemies to possess these classes are Etzel (a recruitable Sorcerer in Chapter 17x) and Gharnef (the boss of Chapters 15 and 23; he was a Bishop in the original game). The only enemy Sage is Wendell, who is recruited in Chapter 5.
- In Fire Emblem: Three Houses, the three lords all have classes exclusive to them (Edelgard's Armored Lord/Emperor, Dimitri's High Lord/Great Lord, and Claude's Wyvern Master/Barbarossa) that they uniquely bear as enemies. In addition, the Death Knight has his own unique melee-oriented variant of the Dark Knight class called the Death Knight. Rhea is only fought in their Saint class in one chapter on the Crimson Flower route, all their other appearances have them in other classes.
- Fire Emblem Heroes:
- The enemy does not normally have access to generic ranged armors, dagger fliers and cavalry, armored, colorless, or cavalry manaketes, or beast units. That means that any such units are unique among enemy forces when they do take the field against you.
- On the flipside, up until the release of Lyn: Brave Lady on 8/31/2017, bow cavaliers were exclusive to the enemy. Likewise, data for red bows was included in the 4/9/2018 update and generic enemy red bowmen were actually introduced in the 12/10/2018 update, but no playable red bow wielder existed until 11/19/2019 with the introduction of Igrene: Nabata Protector.
- Inverted with dancers, which are almost always unique to players due to the intensely increased logistical issues that would come from having to strategise around enemy units potentially gaining a second turn. The only mainline exception is Fire Emblem: Thracia 776, and that game is known as one of the franchise's most difficult for a reason. (In Fire Emblem Heroes, dancers can be seen in PvP modes, but can only be found in PvE maps when the starrng enemy unit is themselves a dancer.)
