Giant Spider: This week's Minosaur is based off Arachne, a talented mortal weaver in the Greek mythology who challenged Athena to a weaving contest which resulted in Arachne being transformed into a spider.
Logical Weakness: Due to her main ability stemming from her targets breaking her school rules plastered all over the school walls, once forced out of school grounds the Arachne Minosaur is unable to use her ability on anyone, save for a few unlucky victims who just so happened to break the law in front of her off-screen.
Squishy Wizard: Aside from her special ability to teleport rule-breakers into her pocket dimension, the Arachne Minosaur is stated by Kleon to be physically weak and incapable of fighting, which adds irony considering her host teaches physical education.
Top-Heavy Guy: Like a lot of spider monsters in Heisei toku, the Arachne Minosaur's eight legs and abdomen make up its head.