Heimler (ヒムラー Himurā, Himmler in the Japanese version) is an enemy unit in Chapter 12 of Fire Emblem: Shadow Dragon and the Blade of Light and Fire Emblem: Shadow Dragon. In the latter, Heimler drops a Master Seal when defeated. He also carries a Door Key, which he will use a few turns into the battle to unlock a door and attack the player units. He has poor HP and defense, but he can easily wipe out any weak unit.
Oddly, despite having a unique name and face among enemy units, Heimler cannot be recruited, does not not have a background story, nor has any spoken lines when he is attacked or defeated.
*Dropped when defeated
Himmler is best known as the surname of Heinrich Himmler, a leading member of the Nazi Party of Germany and one of the most powerful men of that country. The stigma associated with the surname may have been why Heimler's name was slightly altered in international releases.