Necrophobe

Necrophobe, He is hiding in the final area in the Interdimensional Rift, and when the party defeats him, they are rewarded with the final save point. Necrophobe enters the battle with four Barrier monsters. He spends his first turn boasting about his invincibility and does nothing for the rest of his turns. While the Barriers are alive, Necrophobe is invulnerable. The Barriers have permanent reflect status and bounce Holy, Flare, and group-casts of Blizzaga, Firaga, and Thundaga off themselves. They are vulnerable to petrify, death, silence, slow, and stop, and lack the Heavy flag. When the Barriers are defeated, Necrophobe mourns them and starts to fight himself. He starts off by casting the Blue Magic Flash once, then begins his attack rotation. Necrophobe takes two actions per turn, mainly using normal physical attacks and Vacuum Wave, his specialty attack that does 1.5x normal damage and inflicts sap. He also uses Hurricane to set the whole party's HP to single digits.