Braindead amnesiac suffers from daddy-issues-related repeated migraines; retcons himself out of, and back into, existence.
Awakening
Commonly given to the primary protagonist character, this base infantry class usually grants adeptness with swords, and the unique ability to wield the Rapier weapon.
Lord
“Pick a god and pray!”
Frederick
Marth, Chrom, Lucina
Falchion Wielders, Lords, Characters with the blood of the Divine Dragon, Characters that appear as Fighters in Super Smash Bros.
The form of the Fire Emblem appearing in both Shadow Dragon and Awakening, containing within it 5 orbs shared by the different nations.
Shield
Two farm kids tell their dragon babysitters to go back to sleep.
Gaiden/Shadows of Valentia
Varieties of this advanced class exist ranging from focus in swords, axes, lances, and even bows and staves; however, what they share in common is their trusty steed, balanced stats, and eponymous courage to fight for justice.
Paladin
“Here is something to believe in!”
Byleth
Julius, Robin, Lyon
Characters possessed by a dark god/dragon
The form of the Fire Emblem appearing in Three Houses, a lot closer to what you'd expect from an “emblem”.
Crest/Birthmark
The entire Norse pantheon fights over the only person with a gun.
Heroes
Introduced in Fire Emblem: Fates, this advanced flier class sacrifices much of its other stats to focus on Skill, and unlocks the Class Skill Air Superiority.
Kinshi Knight
“No, YOU go extinct!”
Yarne
Seliph, Lilina, Ike
Characters whose fathers are killed on-screen
The form of the Fire Emblem appearing in Path of Radiance and Radiant Dawn, sealing away the chaos deity Yune.
Medallion
And this, ladies, gentlemen and those of other unspecified gender, is why you don’t leave your kid with the evil demon book to run an orphanage.
Genealogy of the Holy War/Thracia 776
Corpses of dragons resurrected by dark forces, these poisonous foes have the highest Strength stat among generic enemies in any Fire Emblem.
Necrodragon/Dracozombie
“Revenge, it lives!”
Sothis
Lyn, Camilla, Tiki
Characters with the highest number of alternate versions in Fire Emblem: Heroes
The form of the Fire Emblem appearing in Tokyo Mirage Sessions, used to counter the Opera of Shadows.
Opera/Ritual
A war between families that honestly would’ve been much funnier played out on the Maury Povich Show or Jerry Springer.
Fates
The exclusive class of Edelgard after activating the power of two Crests at once, destroying her physical form.
Hegemon Husk
“PERISH!”
Celica/Fallen Celica
Sirius, Odin, Claude
Fake identities
The only game in the Fire Emblem series not featuring the titular item.
Gaiden/Shadows of Valentia