Dark Dragon

The Dark Dragon (ダークドラゴン, translated Shadow Dragon in some of the fan translation) is both a type of Dragon and a boss class in Fire Emblem: Mystery of the Emblem and its remake.

Profile
Dark Dragon is the class Medeus appears in after being revived by Gharnef at the end of Fire Emblem: Mystery of the Emblem.

While not an actual unit, Loptyr's spirit summoned by the Loptyr tome in the later game Fire Emblem: Genealogy of the Holy War appears to be a Dark Dragon as well.

It is also the class of Gerxel, the final boss of TearRing Saga: Utna Heroes Saga. Rather then starting as a member of the Earth Dragon tribe or a dragon at all, the Dark Dragon in TearRing Saga is the result of a xenophobic human drinking the blood of the Divine Dragon Miradona and gaining God-like power.

Fire Emblem: Mystery of the Emblem

 * HP: 52
 * Str: 20
 * Skl: 20
 * Spd: 20
 * Lck: 20
 * Def: 20
 * Res: 20
 * Wlv: 20

Fire Emblem: Shin Monshō no Nazo ~Hikari to Kage no Eiyū~

 * HP: 99
 * Str: 40
 * Mag: 30
 * Skl: 40
 * Spd: 30
 * Lck: 30
 * Def: 40
 * Res: 30