Iron Release: Iron Prison

Metals are drawn from the earth to encase the target in a massive iron ball. The ball is essentially airtight, and virtually unbreakable being made of metal, with the obvious exceptions- although one may want to be careful of their use of fire, as they could very quickly burn out their air supply. The ball can also be modified however the caster sees fit- adding air holes or even spikes. Likewise, use of the ball as a weapon is possible for those with enough physical strength- making for what Mayu has dubbed the “Great Wrecking Ball” technique.