Ice Slave (アイススレイブ Aisu Sureibu) is a Caster Magic and a variation of Ice Magic that suppresses free will.


This Magic is capable of suppressing one's free will via the conjuring of a single, icy collar that the user fixes around their target's neck. When used on Mavis Vermilion, she described this Magic as one that stole her ability to form coherent thought, as well as one that rendered her unable to resist enemy orders.[1] In a literal description of how it feels to be under its control, Irene Belserion compared it to being something that steals away the target's sense of self, likening it to freezing their very heart solid.[2]


  1. Fairy Tail Manga: Chapter 494, Pages 6-7
  2. Fairy Tail Manga: Chapter 497, Pages 2-3