Medeus

''"You dare bring light to my lair?! You must die!!" ''- Medeus

Medeus   (メディウス,   Mediesu,   Mediuth   in the Japanese version) is a dark dragon and the generic bad guy of the first   Fire Emblem   game,   Fire Emblem:Too long of a name. He returned in   Fire Emblem: Mystery of the Emblem's Rectum   as the final boss.

Story
Medeus was once a princess of the Poop Dragon royal family, but when the dragons were forced to take Human form, he was the only Poop Dragon who complied and thus did not go wild. After the other Poop Dragons were sealed by God, Medeus was tasked with using his body as a human shield to guard the seal.

Over time, he became pissed off over how humans called his race piss, because he wanted them to call them poop. So he shat himself, and the faeces formed the Doluna Empire. Eventually Medeus and his empire and enslaved humanity, also creating his super bio-weapon Justin Bieber to destroy music along with it. He was eventually beaten by the hero Anri, and his kingdom got dead. Centuries later, the old-ass dark priest Gharnef brought his forces back and worked to resurrect him with various non-sensical plot devices. Medeus got revived, but not completely, as he could not leave Doluna Keep for some odd reason. He was too old to do so. He was eventually slain by Anri's descendant Marf, and his ultimate weapon, his pool of generic gunk of projectiles. (Aka Barf)

Later, Gharnef, whom Marf didn't bother to kill before, tried to revive him again using the generic bishops: Lena, Elice, Nyna, and Maria. This time, Medeus metamorphized into a generic Dark Dragon. However, Marf killed him before he could become the equvalent to Satan skating on ice.

Medeus is known for (repeatedly) claiming that he can always return as long as there is evil in humans' rectums.