Mist

The Mist is a thick substance first encountered in the original Legend of Legaia. It was created by Cort as a weapon. Unfortunately, the experiment failed, mutating him in the process. The Mist has ability to drive Seru mad, and attack humans (Ra-Seru being immune to this effect). The Mist was then mass-distributed accross the world via Mist Generators. The Mist was also used to awaken Juggernaut near the very end of the game.