The Wyerd is an enemy from Final Fantasy IX. The party can find it in the Ice Cavern. Every time it uses its physical attack it will utter one of these two phrases: "The wind lays out my path." or "Get out of my way" (this is a reference to the small icy winds blowing through the Ice Cavern. Wyerds are only encountered by touching these winds when they appear, so they can be effectively avoided with careful timing).
Otherwise, it can be a bit tricky to fight, as its HP Switching attack exchanges its HP with the targets, typically restoring their own HP and placing the target in critical health. Compounding this problem is the fact that Wyerd often uses Blizzard on weakened party members, possibly killing them.
Note that even though it has few Hit Points, its maximum HP is tremendously high, able to reach up to 9999 HP if it switches HP with a party member with 9999 HP.