Mistodon

The Mistodon is an undead enemy from Final Fantasy IX. It is a creature born of the Mist. They are first encountered in the Iifa Tree at the end of Disc 2. During the Defense of Alexandria in the later part of the game, the town is overrun with the creatures. They can also be found in various Mist-covered locations throughout the world on Disc Four. Their Mist attack is capable of inflicting Sleep and Shadow-elemental damage on the entire party. Since they are undead, a Life spell will instantly kill them, and a Phoenix Down will reduce their HP to one.

Etymology
The original Japanese name for Mistodon, Kiri no Majuu, literally translates to "mist demon". The English name may stem from "mastodon", an extinct relative of mammoths. The Greek word odont means "tooth".