Square of Self-Destruction (自律崩壊魔法陣 Jiritsu Hōkai Mahōjin) is a Caster Magic created by Brain.
Description[]
By activating this Magic, the caster places a complex self-destruct sequence of digital-like purple circuit lines on any person or object. Jellal Fernandes stated that without the cancellation code, this Magic cannot be stopped.[1] On the contrary, however, it was shown that the Magic's creator, Brain, could easily dispel it without any need for the code.[2]