Evil Fear Vampire
During an attack by Blade & Saurod, Man-at-Arms was injured by Saurod's new sparks. Teela & Adam flew in the Wind Raider to Helios above the Sands of Time to get the Healing Gem of Helios, placed there by the Cosmic Enforcers for safe keeping.
In order to get the Healing Gem & save Man-at-Arms, Teela had to face the Mind Beast in the Maze of Madness. But she was incapacitated by the Mind Beast's power to make people see their greatest fear.
When The Mind Beast was defeated by He-Man, he left Helios & searched for his creator, Shokoti. Instead, he was found by Scareglow who felt the Mind Beast's fear energy & brought him back to Snake Mountain to serve as one of Skeletor's Evil Warriors, feeding on the fear of others.